Automatic identification of chip identification codes is of great significance to avoid manual plug-in errors and improve sorting efficiency. In this paper, a chip surface identification system based on OCR technology is designed. The system consists of an industrial camera, a light source, a detection platform, a trigger device and a PC. The trigger device triggers the industrial camera to capture the chip picture. The OCR algorithm is used to automatically identify the chip surface identification code in the picture and extract the identification code for subsequent application. The application results show that the recognition time of a single image is about 300ms, and the recognition accuracy can reach more than 95%. Under the premise of ensuring certain accuracy, the work efficiency can be greatly improved, and it has good practical value.