The invention discloses a grain surface moving device platform for a grain depot, and relates to the technical field of grain sampling machinery. The moving device platform comprises a base box and anautomatic grain pile detection system arranged on the upper portion of the base box, a controller of the automatic grain pile detection system is arranged inside the base box, the controller is provided with a wireless module, the lower bottom surface of the base box is of a fish-maw-shaped structure, supporting frames are arranged on the two sides of the base box, the front ends and the rear ends of the two sides of the supporting frames are connected with supporting rods, the other ends of the supporting rods are connected with motor boxes, driving motors are arranged in the motor boxes, rotating shafts of the driving motors on the same sides of the supporting frames are connected to the same rotating rods, spiral wheels are arranged on the rotating rods between the motor boxes on the same sides of the supporting frame, and the driving motors are electrically connected with the controller. The moving device platform has the advantages that the spiral wheels are arranged on the two sides of the base box to serve as driving wheels, in addition, the lower bottom surface of the base box is configured to be of the fish-maw-shaped structure, so that the resistance is reduced, and thetrafficability is high.