In order to solve the shortcomings such as restricted manual feeding operation space, high labor intensity and low feed utilization rate in the multi-layer sink-type industrialized recirculating aquaculture mode, a small and micro intelligent feeding car system based on K60 single-chip controller was designed. The system is composed of a tracing trolley, a feeding device and a control system, and runs on a specific feeding runway. Based on the track information collected by the infrared tube and the feed information collected by the pressure sensor, it is determined whether to feed or supplement, thereby achieving intelligent fixed-point and quantitative feeding. The preliminary test operation results show that the system is stable and reliable, the running speed is 0.5~2.2m/s, the positioning accuracy error of feeding is less than 2cm, and the feeding error is less than 10g, which basically meets the design requirements.