The invention discloses an automatic loading and unloading deice for a jig. The automatic loading and unloading device for the jig comprises a workbench for bearing the jig, and is characterized in that the workbench is provided with upper mould grippers, a workpiece loading gripper and a workpiece unloading gripper, wherein the upper mould grippers are used for gripping or closing a jig upper mould from a base; the workpiece loading gripper is used for gripping and loading a workpiece to be machined to the jig base; and the workpiece unloading gripper is used for gripping and unloading the machined workpiece to a workpiece conveying line. The automatic loading and unloading device for the jig provided by the invention is provided with the upper mould grippers, the workpiece loading gripper and the workpiece unloading gripper for realizing the automatic loading and unloading of the jig, thus greatly reducing labor intensity; and the efficiency is high, the cost is simple, the structure is simple and the use is convenient.