The invention relates to an automatic conveying device, and belongs to the technical field of garment auxiliary production. The automatic conveying device comprises a feeding mechanism, a suspender directional track, a conveying mechanism and a mechanical arm, wherein the feeding mechanism comprises a vibrating disc hopper, a spiral rising trough is formed in the inner wall of the vibrating disc hopper in the circumferential direction of the vibrating disc hopper, the suspender directional track comprises a first directional track body, a second directional track body and a third directional track body which are sequentially connected, the conveying mechanism comprises a tray, a conveying track and a driving element for driving the conveying track to move, the tray is detachably arranged on the conveying track, and the mechanical arm is used for grabbing suspenders from the third directional track body and placing the suspenders on the tray. According to the automatic conveying device,through the ingenious cooperation of all components in a system, the purpose that the unordered suspenders are orderly and directionally arranged to be orderly and accurately conveyed to a silk-screen printing station can be achieved, and in the process steps, the manual operation is converted into the automatic work of machines.