Exhibit 23.1

                         CONSENT OF INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statement (Form
S-8 No. 333-46686) pertaining to the 2000 Long-Term Incentive Plan of Luminex
Corporation and in the Registration Statement (Form S-8 No. 333-87918)
pertaining to the 2001 Broad-Based Stock Option Plan of Luminex Corporation of
our report dated January 21, 2004, with respect to the consolidated financial
statements of Luminex Corporation included in the Annual Report (Form 10-K) for
the year ended December 31, 2003.


                                            /s/ Ernst & Young LLP

Austin, Texas
March 9, 2004