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Aiming at the problems of low irrigation efficiency of the current water-saving irrigation intelligent control system and poor soil moisture after irrigation, a water-saving irrigation intelligent control system based on FDRE is proposed. The hardware consists of a central processing unit module, a wireless communication module, a sensor module, a battery module, an upper computer module and a lower computer module. The central processing unit selects STM24865V5848 single chip to enhance its information processing capability, and the wireless communication module is responsible for transmitting irrigation information, using AMS753 the circuit enhances the stability of power supply, and realizes software operation through wireless communication program, upper computer and lower computer control program. Experimental results show that the FDRE-based water-saving irrigation intelligent control system has higher soil moisture after irrigation, which can effectively improve the irrigation efficiency of the system.