Since the reform and opening up

China’s economy has prospered and developed

and people’s living water products have improved significantly. Higher requirements have been put forward to the source of products inproduction and life and the subsequent management process. The application of PLC in automatic control system can effectively ensure the development level of various industries

reduce costs

improve economic development and rationally utilize resources. The use of intelligent systems in food production and processing can effectively save labor and improve work efficiency. When building a fruit classification system

PLC technology can help improve the automation of the fruit classification system. This paper analyzes the basic principle of PLC technology and discusses how to use PLC technology and image processing technology to design fruit classification system.