In view of high labor intensity and bad labor environment in mink feeding links during the mink farming, low feeding mechanization level of mink in China at present, a kind of rail-mounted double-row automatic feeding trolley for mink farming was developed. The main structure of automatic feeding trolley was composed of the control system, running system, transporting and feeding system, feeding rack extension and retraction system. The control requirement for the integral control system during the work was analyzed, its implementation method and action process were studied, the working state fixed position transition of all motors was precisely controlled by means of photoelectric sensor and PLC, the man-machine interaction adjustment of feeding motor operating parameters was realized;the guide wheel orbit structure was designed and the feed transporting pipeline was optimized and shortened;an automatic feeding structure was designed by simulating action forms of hands and arms in manual feeding, the kinematics of mechanism was analyzed to determine the specific structure and motion parameters;an extension and retraction structure for the feeding trolley was designed, and the determination of structure parameters was carried out by means of operating conditions. The performance test results showed that the ranges of change of actual feeding quality were respectively 165~210g, 355~427g and 567~622g, the stacking mass of feeding stuffs on the cage were respectively 6.53%, 3.78% and 2.74%, the leakage rate for each test was 0%, the actual feeding requirement could be met, when the speed of the feeding trolley was 0.6m/s, preset feeding quantity was respectively 200g, 400g and 600g. The feeding trolley improved the feeding efficiency, saved the labor cost, and increased the carrying capacity of the feeding trolley.