Exhibit 23.1

            Consent of Independent Registered Public Accounting Firm

We consent to the reference to our firm in the Registration Statement (Form S-8)
pertaining to the Luminex Corporation 2006 Equity Incentive Plan and the Luminex
Corporation 2006 Management Stock Purchase Plan and to the incorporation by
reference therein of our reports dated March 10, 2006, with respect to the
consolidated financial statements and schedules of Luminex Corporation included
in its Annual Report (Form 10-K) for the year ended December 31, 2005, Luminex
Corporation management's assessment of the effectiveness of internal control
over financial reporting, and the effectiveness of internal control over
financial reporting of Luminex Corporation filed with the Securities and
Exchange Commission.

/s/ Ernst & Young LLP

Austin, Texas
May 25, 2006