The scheme mainly consists of four parts: crop condition detection system, soil condition detection system, drip irrigation control system and drug control system. The hardware components of the crop condition detection system are composed of lens, industrial camera and computer. Through the visual system, the growth of strawberries in greenhouse can be monitored regularly or in real time. The system can detect several common strawberry diseases and insect pests and judge the growth of strawberries by detecting the conditions of strawberry flowers, leaves and fruits. The computer processes the images to obtain the information of strawberry growth conditions, diseases and insect pests, and sends the processing results to PLC for subsequent control and feedback to farmers to adjust planting strategies; the soil condition detection system transmits the data collected by the soil temperature and humidity sensor buried in the soil to the PLC, and the PLC judges what kind of operation to perform after the incoming data. The hardware components of drip irrigation system mainly include drip irrigation pipe, valve and water pump. Through the PLC control water pump switch to deliver water to the drip irrigation pipe, PLC then control valve switch to determine the part of the drip irrigation area; spraying system hardware components mainly include bottles, water pipes, valves, nozzles. The pressurized water pipe is connected with the medicine bottle tube, and the liquid medicine is sent to the top of the greenhouse by mixing and pressurizing the liquid medicine. The corresponding valve is opened, and the liquid medicine is sprayed from the nozzle to realize automatic medicine injection.