An autumn pruning robot for crested land grapes comprises a platform, four travel mechanisms, two baskets, a holder, a camera, a battery pack, four hinge supports, two motors, four supporting arms, four first telescopic sleeves, two protective covers, two screw blades and the like. The autumn pruning robot is characterized in that the lower ends of four second telescopic sleeves are fixedly mounted at four corners of the holder respectively, one second telescopic rod is arranged in each second telescopic sleeve, the lower ends of second electric cylinders are mounted on the second telescopic sleeves, the upper ends of the second electric cylinders are mounted on the second telescopic rods, and extension and retraction of the four second electric cylinders drive the four second telescopic rods to extend and retract. Four servo motors control the travel mechanisms, angles among the travel mechanisms and the ground can be changed to adapt to different terrains, and grape branches at different positions can be pruned by adjusting the heights and the angles of the screw blades in the pruning process.