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EXHIBIT 31.1

ARGENTEX MINING CORPORATION
  OFFICER’S CERTIFICATE PURSUANT TO SECTION 302

I, Chris Dyakowski, the Chief Executive Officer of Argentex
  Mining Corporation, certify that:

|1. | I have reviewed this annual report on
        Form 10-KSB of Argentex Mining Corporation;                                                                                                                                                                                                                                                                                                            
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|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;                                                           
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|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 small business issuer as of, and for, the periods
        presented in this report;                                                                   
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|4. | The small business issuer'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 small business issuer
        and have:
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|5. | The small business issuer's other certifying
        officer(s) and I have disclosed, based on our most recent evaluation of
        internal control over financial reporting, to the small business issuer's
        auditors and the audit committee of the small business issuer's board
        of directors (or persons performing the equivalent functions):                                  
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|Date: May 13, 2005 | /s/ CHRIS DYAKOWSKI    
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|                   | Chris Dyakowski        
|                   | Chief Executive Officer

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