Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in Heska Corporation’s Registration Statements on Form S-8 (File Nos. 333-30951, 333-34111, 333-47129, 333-72155, 333-38138, 333-39448, 333-55112, 333-82096, 333-89738, 333-102871, 333-106679, 333-112701, 333-115995, 333-123196, 333-132916, 333-141737, 333-194120, 333-194122, 333-195734, 333-204036, 333-211567, and 333-225112) of our report dated February 28, 2020, relating to the December 31, 2019 and 2018 consolidated financial statements and the effectiveness of internal control over financial reporting of Heska Corporation, which appears in this Annual Report on Form 10-K.

/s/ Plante & Moran, PLLC

Denver, Colorado

February 28, 2020