SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C.  20549

                                 FORM 10-K


(Mark One)

/ x /ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 1997

OR

/   /TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934 [NO FEE REQUIRED]

                     Commission File No.:333-21263-21

                    Norwest Asset Securities Corporation,
            Mortgage Pass-Through Certificates, Series 1997-21 Trust
             (Exact name of registrant as specified in its charter)

NY                                          52-2079984        
(State or other jurisdiction of            (I.R.S. Employer Identification
incorporation or organization)              No.)


c/o Norwest Bank Minnesota, N.A.
7485 New Horizon Way
Frederick, Maryland                        21703
(Address of principal executive            (Zip Code)
offices)


Registrant's telephone number, including area code (301) 696-7900

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 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.


Yes  X          No__


        Indicate by check mark if disclosure of delinquent filers pursuant
to Item 405 of Regulation S-K (Section 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.

        Not Applicable

        State the aggregate market value of the voting stock held by non-
affiliates of the registrant.  The aggregate market value shall be
computed by reference to the price at which the stock was sold, or the
average bid and asked prices of such stock, as of a specified date within
60 days prior to the date of filing.  (See definition of affiliate in
Rule 405.)

        Not Applicable

        Indicate the number of shares outstanding of each of the
registrant's classes of common stock, as of the latest practicable date.

        Not Applicable


                                  PART I

Item 1.  Business.

         Omitted

Item 2.  Properties.

         See Item 14(a), Exhibits 99.1, 99.2, and 99.3, for information 
         provided in lieu of information required by Item 102 of 
         Regulation S-K.

Item 3.  Legal Proceedings.

         The registrant knows of no material pending legal proceedings
         involving the trusts created under the Pooling and Servicing
         Agreement (the "Trusts"), the Trustee, the Servicer or the
         registrant with respect to the Trusts other than routine
         litigation incidental to the duties of the respective parties.


Item 4.  Submission of Matters to a Vote of Security Holders.

         None.


                                 PART II


Item 5.  Market for Registrant's Common Equity and Related
         Stockholder Matters.  (Subsection references herein refer to 
         Section 201 of Regulation S-K.)

         (a)  No established public trading market for the Certificates 
              exists.

         (b)  As of December 31, 1997, the number of holders of the
              publicly offered Certificates was 13.

         (c)  Omitted.


Item 6.  Selected Financial Data.

         Omitted.


Item 7.  Management's Discussion and Analysis of Financial
         Condition and Results of Operations. 

         Omitted.


Item 8.  Financial Statements and Supplementary Data.

         See Item 14(a), Exhibits 99.1, 99.2, and 99.3, for information 
         provided in lieu of information required by Item 102 of 
         Regulation S-K.


Item 9.  Changes in and Disagreements with Accountants on
         Accounting and Financial Disclosure.

         None.


                                PART III


Item 10.  Directors and Executive Officers of the Registrant.

          Not applicable.


Item 11.  Executive Compensation.

          Not applicable.



Item 12.  Security Ownership of Certain Beneficial Owners and Management.

          Not applicable.



Item 13.  Certain Relationships and Related Transactions.

          Not applicable.


                                 PART IV


Item 14.  Exhibits, Financial Statement Schedules, and Reports on Form 8-K

     (a)  Exhibits

          99.1   Annual Independent Accountants' Servicing Reports
                 concerning servicing activities for the year ended
                 December 31, 1997.

                 (a)  Farmers State Bank and Trust, as Servicer <F1>
                 (b)  First Bank National Association, as Servicer <F1>
                 (c)  First Union Mtg. Corp., as Servicer <F1>
                 (d)  FT Mortgage, as Servicer <F1>
                 (e)  National City Mortgage Co., as Servicer <F1>
                 (f)  Norwest Mortgage, Inc., as Servicer <F1>
                 (g)  Sun Trust Mortgage, Inc., as Servicer <F1>
                 (h)  The Huntington Mortgage Co., as Servicer <F1>

          99.2   Report of Management as to Compliance with Minimum
                 Servicing Standards for the year ended December 31, 1997.

                 (a)  Farmers State Bank and Trust, as Servicer <F1>
                 (b)  First Bank National Association, as Servicer <F1>
                 (c)  First Union Mtg. Corp., as Servicer <F1>
                 (d)  FT Mortgage, as Servicer <F1>
                 (e)  National City Mortgage Co., as Servicer <F1>
                 (f)  Norwest Mortgage, Inc., as Servicer <F1>
                 (g)  Sun Trust Mortgage, Inc., as Servicer <F1>
                 (h)  The Huntington Mortgage Co., as Servicer <F1>

          99.3   Annual Statements of Compliance under the Pooling and
                 Servicing Agreements for the year ended December 31, 1997.

                 (a)  Farmers State Bank and Trust, as Servicer <F1>
                 (b)  First Bank National Association, as Servicer <F1>
                 (c)  First Union Mtg. Corp., as Servicer <F1>
                 (d)  FT Mortgage, as Servicer <F1>
                 (e)  National City Mortgage Co., as Servicer <F1>
                 (f)  Norwest Mortgage, Inc., as Servicer <F1>
                 (g)  Sun Trust Mortgage, Inc., as Servicer <F1>
                 (h)  The Huntington Mortgage Co., as Servicer <F1>

          99.4   Aggregate Statement of Principal and Interest 
                 Distributions to Certificate Holders.

                 No distibutions to certificate holders were made during 1997.

     (b)  No reports on Form 8-K have been filed during the last quarter 
          of the period covered by this report.

     (c)  Not applicable.

     (d)  Omitted.


<F1>  Such document (i) is not filed herewith since such document was not 
received by the Reporting Person at least three business days prior to the due 
date of this report; and (ii) will be included in an amendment to this report on
Form 10-K/A to be filed within 30 days of the Reporting Person's receipt of 
such document.


                                SIGNATURES


Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized:


Norwest Asset Securities Corporation,
Mortgage Pass-Through Certificates, Series 1997-21 Trust


Signed     Norwest Bank Minnesota, N.A.
           as Master Servicer
By:        Sherri J. Sharps
By:        /s/Sherri J. Sharps
Title:     Vice President
Dated:     March 20, 1998








SUPPLEMENTAL INFORMATION TO BE FURNISHED WITH REPORTS FILED PURSUANT TO
SECTION 15(d) OF THE ACT BY REGISTRANTS WHICH HAVE NOT REGISTERED
SECURITIES PURSUANT TO SECTION 12 OF THE ACT


     (a)(1)  No annual report is provided to the Certificateholders
     other than with respect to aggregate principal and interest
     distributions.

     (a)(2)  No proxy statement, form of proxy or other proxy
     soliciting material has been sent to any Certificateholder with
     respect to any annual or other meeting of Certificateholders.