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**Exhibit
      31.1**


**Certification
      pursuant to Rule 13a-14(a) or 15d-14(a) under the Securities Exchange Act of
      1934, as amended**





I,
      Robert Knight,
      certify that:





|1. | I
              have
              reviewed this quarterly report on Form 10-QSB of Mexoro Minerals Ltd.
              for
              the quarterly period ended May 31, 2007.
|-- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------




|2. | Based
              on my
              knowledge, this report does not contain any untrue statement of a material
              fact or omit to state a material fact necessary to make the statements
              made, in light of the circumstances under which such statements were
              made,
              not misleading with respect to the period covered by this
              report;
|-- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------




|3. | Based
              on my
              knowledge, the financial statements, and other financial information
              included in this report, fairly present in all material respects the
              financial condition, results of operations and cash flows of the company
              as of, and for, the periods presented in this
              report;
|-- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------




|4. | The
              company's
              other certifying officer(s) and I are responsible for establishing
              and
              maintaining disclosure controls and procedures (as defined in Exchange
              Act
              Rules 13a-15(e) and 15d-15(e)) and internal control over financial
              reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))
              for
              the company and have:
|-- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------




(a)  Designed
      such
      disclosure controls and procedures, or caused such disclosure controls and
      procedures to be designed under our supervision, to ensure that material
      information relating to the company, including its consolidated subsidiaries,
      is
      made known to us by others within those entities, particularly during the period
      in which this report is being prepared;





(b)  Designed
      such
      internal control over financial reporting, or caused such internal control
      over
      financial reporting to be designed under our supervision, to provide reasonable
      assurance regarding the reliability of financial reporting and the preparation
      of financial statements for external purposes in accordance with generally
      accepted accounting principles;





(c)  Evaluated
      the
      effectiveness of the company's disclosure controls and procedures and presented
      in this report our conclusions about the effectiveness of the disclosure
      controls and procedures, as of the end of the period covered by this report
      based on such evaluation; and





(d)  Disclosed
      in this
      report any change in the company's internal control over financial reporting
      that occurred during the period covered by the annual report that has materially
      affected, or is reasonably likely to materially affect, the company's internal
      control over financial reporting; and





|5. | The
              company's
              other certifying officer(s) and I have disclosed, based on our most
              recent
              evaluation of internal control over financial reporting, to the company's
              auditors and the audit committee of the company's board of directors
              (or
              persons performing the equivalent
              functions):
|-- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------




(a)  All
      significant
      deficiencies and material weaknesses in the design or operation of internal
      control over financial reporting which are reasonably likely to adversely affect
      the company's ability to record, process, summarize and report financial
      information; and





(b)  Any
      fraud, whether
      or not material, that involves management or other employees who have a
      significant role in the company's internal control over financial
      reporting.





Date:
      July 16,
      2007





By:
      /S/ Robert
      Knight


__________________________


Robert
      Knight, CEO,
      CFO and Director