**UNITED
      STATES**


**SECURITIES
      AND EXCHANGE COMMISSION**


**Washington,
      D.C. 20549**








**FORM
      10-K**








**[X]
      ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT
      OF
      1934**





For
      the
      fiscal year ended December 31, 2006


or





**[  
      ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES AND
      EXCHANGE ACT OF 1934**





For
      the
      transition period from ________to _______





Commission
      file number of issuing entity: 333-130545-29





MERRILL
      LYNCH MORTGAGE INVESTORS TRUST, SERIES 2006-MLN1


(Exact
      name of issuing entity as specified in its charter)




Commission
      file number of depositor:
333-130545




Merrill
        Lynch Mortgage Investors, Inc.


(Exact
      name of registrant/depositor as specified in its charter)




Merrill
      Lynch Mortgage Lending, Inc.


(Exact
        name of sponsor as specified in its charter)




Delaware
            
            13-3416059(State
                or other jurisdiction of
              incorporation
                or organization)
            
            (I.R.S.
                Employer
              Identification
                No.)





250
        Vesey Street, 4 World Financial Center, 10th Floor, New York, NY
        10080
 (Address of principal
        executive offices)




212-449-0357 (Registrant's
        telephone number, including area code)


Securities
      registered pursuant to Section 12(b) of the Act:




None




Securities
      registered pursuant to Section 12(g) of the Act:




None




Indicate
      by check mark if the registrant is a well-known seasoned issuer, as defined
      in
      Rule 405 of the Securities Act.





oYes
            
            xNo





Indicate
      by check mark if the registrant is not required to file pursuant to Section
      13
      or Section 15(d) of the Act.





oYes
            
            xNo





Indicate
      by check mark whether the registrant (1) has filed all reports required to
      be
      filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
      the
      preceding 12 months (or for such shorter period that the registrant was required
      to file such reports), and (2) has been subject to such filing requirements
      for
      the past 90 days.





xYes
            
            oNo





Indicate
      by check mark if disclosure of delinquent filers pursuant to Item 405 of
      Regulation S K (§229.405
      of this
      chapter) is not contained herein, and will not be contained, to the best of
      registrant’s knowledge, in definitive proxy or information statements
      incorporated by reference in Part III of this Form 10-K or any amendment to
      this
      Form 10-K.





x





Indicate
      by check mark whether the registrant is a large accelerated filer, an
      accelerated filer, or a non-accelerated filer. See definition of “accelerated
      filer and large accelerated filer” in Rule 12b-2 of the Exchange Act (Check
      one):




Large
                accelerated filero
            Accelerated
                filero
            Non-accelerated
                filer x




Indicate
      by check mark whether the registrant is a shell company (as defined in Rule
      12b-2 of the Act).   oYes  xNo




State
      the
      aggregate market value of the voting and non voting common equity held by
      non-affiliates computed by reference to the price at which the common equity
      was
      last sold, or the average bid and asked price of such common equity, as of
      the
      last business day of the registrant’s most recently completed second fiscal
      quarter.





Not
      Applicable




**DOCUMENTS
      INCORPORATED BY REFERENCE**




None




**PART
      I**


Item
        1.
        Business.
 Omitted.
 
 **Item
        1A. Risk Factors.**
 Omitted.
 
 **Item
        1B. Unresolved Staff Comments.**
 None.
 
 **Item
        2. Properties.**
 Omitted.
 
 **Item
        3. Legal Proceedings.**
 Omitted.
 
 **Item
        4. Submission of Matters to a Vote of Security Holders.**
 Omitted.
 
 
 **PART
        II**
 
 **Item
        5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer
        Purchases of Equity Securities.**
 Omitted.
 
 **Item
        6. Selected Financial Data.**
 Omitted.
 
 **Item
        7. Management’s Discussion and Analysis of Financial Condition and Results of
        Operation.**
 Omitted.
 
 **Item
        7A. Quantitative and Qualitative Disclosures About Market
        Risk.**
 Omitted.
 
 **Item
        8. Financial Statements and Supplementary Data.**
 Omitted.
 
 **Item
        9. Changes in and Disagreements With Accountants on Accounting and Financial
        Disclosure.**
 Omitted.
 
 **Item
        9A. Controls and Procedures.**
 Omitted.
  Item
        9A(T). Controls and
        Procedures.
 Omitted.
  **Item
        9B. Other Information.**
 None.
 
 **PART
        III**
 
 **Item
        10. **Directors,
        Executive Officers and Corporate
        Governances.****
 Omitted.
 
 **Item
        11. Executive Compensation.**
 Omitted.
 
 **Item
        12. Security Ownership of Certain Beneficial Owners and Management and Related
        Stockholder Matters.**
 Omitted.
 
 **Item
        13. **Certain
        Relationships and Related Transactions, and Director Independences.****
 Omitted.
 
 **Item
        14. Principal Accounting Fees and Services.**
 Omitted.
 
 **Item
          1112(b) of Regulation AB. Significant Obligors Financial
          Information.**
 Not
          Applicable.
 
 **Item
          1114(b)(2) and 1115(b) of Regulation AB. Significant Enhancement Provider
          Financial Information.**
 Not
          Applicable.
 
 **Item
          1117 of Regulation AB. Legal Proceedings.**
 Mortgage
              Lenders Network USA Inc. filed for Chapter 11 bankruptcy protection
              on February
              5, 2007 in United States Bankruptcy Court, District of Delaware. This
              will
              affect the ability of the issuing entity to enforce representations
              and
              warranties relating to the mortgage loans originated by such party.
 
 The
              registrant knows of no other material pending legal proceedings involving
              the
              Trust and all parties related to such Trust, other than routine litigation
              incidental to the duties of those respective parties.
  **Item
            1119 of Regulation AB. Affiliations and Certain Relationships and Related
            Transactions.**
 Information
          required by Item 1119 was provided previously in a prospectus timely filed
          pursuant to Rule 424 promulgated under the Securities Act of 1933, under
          the
          same Central Index Key (CIK) code as this annual report on Form 10-K. No
          material changes to such information have occurred since the initial Rule
          424
          filing.
 
 **Item
          1122 of Regulation AB. Compliance with Applicable Servicing
          Criteria.**
 From
                the
                closing date on September 29, 2006 until on or about November 1,
                2006, Mortgage
                Lenders Network USA Inc. served as interim servicer for approximately
                57.43% of
                the mortgage loans. Subsequent to such term, Wilshire Credit Corporation
                became
                the servicer with respect to such mortgage loans and Mortgage Lenders
                Network
                USA Inc. no longer serviced any of the mortgage loans in the mortgage
                pool.
 
 Mortgage
                Lenders Network USA Inc. filed for Chapter 11 bankruptcy protection
                on February
                5, 2007 in United States Bankruptcy Court, District of Delaware and
                immediately
                began the process of winding down its remaining servicing business.
                Under the
                terms of its servicing agreement, Mortgage Lenders Network USA Inc.
                was
                obligated, but failed, to deliver a Report on Assessment of Compliance
                and
                associated Attestation Report. Mortgage Lenders Network USA Inc.
                has been asked
                by the registrant to comply with its contractual commitment to deliver
                these
                reports but has not complied with that request. As a result of such
                filing and
                winding down, it has not been possible to obtain an Item 1122 Assessment
                of
                Compliance from Mortgage Lenders Network USA Inc. without unreasonable
                effort or
                expense.
  The
                assessment of compliance for Wilshire Credit Corporation (“Wilshire”) has
                disclosed the following material noncompliance with servicing criterion
                1122(d)(4)(iv), applicable to Wilshire during the year ended December
                31, 2006.
                On one of the forty-five loan payoffs selected for testing, Wilshire
                calculated
                the prepayment charge in accordance with the related mortgage note,
                but
                transposed the numbers when entering the charge into its system,
                resulting in an
                overcharge to the borrower. Such assessment further states that this
                error has
                been corrected and the overcharge has been refunded to the
                borrower.
  See
          Item
          15, exhibits (33) and (34).
 
 **Item
          1123 of Regulation AB. Servicer Compliance Statement.**
 From
                the
                closing date on September 29, 2006 until on or about November 1,
                2006, Mortgage
                Lenders Network USA Inc. served as interim servicer for approximately
                57.43% of
                the mortgage loans. Subsequent to such term, Wilshire Credit Corporation
                became
                the servicer with respect to such mortgage loans and Mortgage Lenders
                Network
                USA Inc. no longer serviced any of the mortgage loans in the mortgage
                pool.
  Mortgage
                Lenders Network USA Inc. filed for Chapter 11 bankruptcy protection
                on February
                5, 2007 in United States Bankruptcy Court, District of Delaware and
                immediately
                began the process of winding down its remaining servicing business.
                Under the
                terms of its servicing agreement, Mortgage Lenders Network USA Inc.
                was
                obligated, but failed, to deliver an Item
                1123  Servicer
                Compliance Statement .
                Mortgage Lenders Network USA Inc. has been asked by the registrant
                to comply
                with its contractual commitment to deliver such
                statement but
                has
                not complied with that request. As a result of such filing and winding
                down, it
                has not been possible to obtain an Item 1123 Servicer Compliance
                Statement from
                Mortgage Lenders Network USA Inc. without unreasonable effort or
                expense.
  See
          Item
          15, exhibit (35).
 **PART
        IV**
 
  **Item
        15. Exhibits, Financial Statement Schedules.**
 
 (a)
        The
        following is a list of documents filed as part of this Annual Report on Form
        10-K:
 (1)
        Not
        Applicable
 (2)
        Not
        Applicable
 (3)


**Exhibit
                Number**
            **Description**4.1
            Pooling
                and Servicing Agreement (filed as an exhibit to Form 8-K on
                2006-10-16)10.1
            Mortgage
                Loan Sale and Assignment Agreement (filed as an exhibit to Form
                8-Kon
                2006-10-16)31
            Sarbanes-Oxley
                Certification33(a)
            Report
                  on assessment of compliance with servicing criteria for asset-backed
                  securities,  Wilshire Credit Corporation, as
                  Servicer33(b)
            Report
                  on assessment of compliance with servicing criteria for asset-backed
                  securities,  LaSalle Bank National Association, as
                  Trustee33(c)
            Report
              on assessment of compliance with servicing criteria for asset-backed
              securities,  LandAmerica Tax and Flood Services, Inc., as Servicing
              Function Participant34(a)
            Attestation
              report on assessment of compliance with servicing criteria for
              asset-backed securities, Wilshire Credit Corporation, as
              Servicer34(b)
            Attestation
              report on assessment of compliance with servicing criteria for
              asset-backed securities, LaSalle Bank National Association, as
              Trustee34(c)
            Attestation
              report on assessment of compliance with servicing criteria for
              asset-backed securities, LandAmerica Tax and Flood Services, Inc.,
              as
              Servicing Function Participant35(a)
            Servicer
                  compliance statement,  Wilshire Credit Corporation, as
                  Servicer35(b)
            Servicer
                    compliance statement, LaSalle Bank National Association, as
                    Trustee


(b)
                      The exhibits required to be filed by Registrant pursuant to
                      Item 601 of
                      Regulation S-K:(31)
                      Rule 13a-14(d)/15d-14(d) Certifications.(33)
                      Reports on assessment of compliance with servicing criteria
                      for
                      asset-backed securities:1.
                  Wilshire
                      Credit Corporation, as Servicer2.
                  LaSalle
                      Bank National Association, as Trustee3.
                  LandAmerica
                      Tax and Flood Services, Inc., as Servicing Function
                      Participant(34)
                      Attestation reports on assessment of compliance with servicing
                      criteria
                      for asset-backed securities:1.
                  Wilshire
                      Credit Corporation, as Servicer2.
                  LaSalle
                      Bank National Association, as Trustee3.
                  LandAmerica
                      Tax and Flood Services, Inc., as Servicing Function
                      Participant(35)
                      Servicer Compliance Statements:1.
                  Wilshire
                      Credit Corporation, as Servicer2.
                  LaSalle
                      Bank National Association, as Trustee




(c)
      Not
      Applicable.








**SIGNATURES**




Wilshire
                Credit Corporation, as ServicerMarch
                28, 2007
              /s/
                Ken FryeBy: Ken
                FryeTitle: Senior
                Vice President Loan Servicing(Senior
                Officer in charge of the servicing function of the
                servicer)





**EXHIBIT
      INDEX**




**Exhibit
                  Number**
              **Description**4.1
              Pooling
                  and Servicing Agreement (filed as an exhibit to Form 8-K on
                  2006-10-16)10.1
              Mortgage
                  Loan Sale and Assignment Agreement (filed as an exhibit to Form
                  8-Kon
                  2006-10-16)31
              Sarbanes-Oxley
                  Certification33(a)
              Report
                    on assessment of compliance with servicing criteria for asset-backed
                    securities,  Wilshire Credit Corporation, as
                    Servicer33(b)
              Report
                    on assessment of compliance with servicing criteria for asset-backed
                    securities,  LaSalle Bank National Association, as
                    Trustee33(c)
              Report
                on assessment of compliance with servicing criteria for asset-backed
                securities,  LandAmerica Tax and Flood Services, Inc., as Servicing
                Function Participant34(a)
              Attestation
                report on assessment of compliance with servicing criteria for
                asset-backed securities, Wilshire Credit Corporation, as
                Servicer34(b)
              Attestation
                report on assessment of compliance with servicing criteria for
                asset-backed securities, LaSalle Bank National Association, as
                Trustee34(c)
              Attestation
                report on assessment of compliance with servicing criteria for
                asset-backed securities, LandAmerica Tax and Flood Services, Inc.,
                as
                Servicing Function Participant35(a)
              Servicer
                    compliance statement,  Wilshire Credit Corporation, as
                    Servicer35(b)
              Servicer
                      compliance statement, LaSalle Bank National Association, as
                      Trustee