Abstract:With the increase of consumers′attention to food safety，the food quality detection is becoming more and more important，which is generally evaluated by considering their size，shape，color，visual defects，as well as freshness.As a non-destructive detection method，computer vision technology，with the advantages of rapid，easy to use and less sample preparation，has been widely used in the food quality detection.The purpose of this paper was to present the basic theories of computer vision technology，and its application research and development of computer vision technology in food quality detection at home and abroad.