The invention discloses a cargo grabbing device for an industrial robot. The cargo grabbing device comprises a hydraulic column, bolt holes, a mounting head, a connecting pipe, supporting rods, mechanical arms, baffles, limiting plates, a fixing head, suction discs, a socket ring, electromagnets, extrusion plates, spiral springs, a telescopic rod, shock absorbing springs, chambers, rubber gaskets,fastening bolts and raised heads. The cargo grabbing device has the beneficial effects that the bottom of the hydraulic column is movably connected with the mechanical arms by employing the telescopic rod and the exterior of the hydraulic column is movably connected with the mechanical arms through the supporting rods, so that operation of the mechanical arms is more stable during operation; themechanical arms are comprehensively fixed by the telescopic rod and the supporting rods, so that a cargo is not prone to shake or fall off when the cargo grabbing device grabs the cargo; and the mechanical arms are convenient to contract and can be contracted simply by using the hydraulic column to drive the telescopic rod to move upwards in the hydraulic column. When the telescopic rod moves upwards, the mechanical arms are tightened and grab the cargo, and when the telescopic rod moves downwards, the mechanical arms release the cargo and the cargo falls off. The cargo grabbing device is convenient in use, simple to operate and high in working efficiency.