摘要：In traditional way of rice irrigation in the Heilongjiang region ， there are many problems such as huge consumption of water, complex wiring and cold water harm. To improve these problems, the intelligent irrigation control system based on PLC and configuration software is designed. The data acquisition and monitoring of water level and water temperature and other parameters are carried through the wireless transmission with PLC as the core, to decide whether irrigation and drainage. In order to solve the problem of cold water harm of rice ， the water of Sun pool is heated by solar heating system. The use of solar panels and batteries for power supply of each part, solve the problem of large power loss. The application proves that the system has a positive effect on water—saving and improving the quality and yield of rice, improving the intelligent of irrigation system.
关键词：rice; intelligent irrigation; soil moisture; PLC; water level
