The utility model relates to a volume changeable orange-peel grab bucket, particularly relates to a grab bucket volume changeable orange-peel grab bucket device, and belongs to the technical field of lifting handling equipment. Supporting ropes are arranged at two ends of a balance beam, and an upper bearing beam is located below the balance beam; a guide roller assembly is positioned at the upper end of the upper bearing beam, an upper pulley is located on the upper bearing beam, a lower pulley is located on a lower bearing beam, and the upper pulley and the lower pulley are connected with each other through a switching rope which penetrates through the guide wheel assembly; the upper end of a supporting rod is connected with the upper bearing beam; a grab bucket body is connected with the lower end of the supporting rod; and a sleeve base is located on the lower bearing beam, and a multi-stage sleeve is connected with the lower end of the sleeve base. According to the volume changeable orange-peel grab bucket, the structure is simple, compact and reasonable, the generality of the orange-peel grab bucket among materials with different specific weights can be achieved, and the orange-peel grab is multipurpose; the trouble that grab buckets are required to be changed for grabbing different materials is avoided, and overload protection is achieved; and the number of configured grab buckets is reduced, and the cost is saved.