The invention specifically relates to a movable rapid automatic transshipment apparatus for a large-mass object, which belongs to the technical field of transshipment. The apparatus comprises an automotive chassis, a rotary table I, a principal arm, a hoisting rocking arm, a hoisting cylinder, a telescoping sling, a crossbeam, a rotary table II, a multistage supporting leg and supporting legs, wherein the rotary table I is installed at a middle position at the front of the automotive chassis, the principal arm is mounted on the rotary table I, one end of the hoisting rocking arm is hinged with the principal arm, the other end of the hoisting rocking arm is hinged with one end of the crossbeam, the other end of the crossbeam is hinged with the multistage supporting leg, the hoisting cylinder is arranged between and connected with the principal arm and the hoisting rocking arm, the rotary table II is installed at the lower side of the crossbeam, the telescoping sling is installed at the lower side of the rotary table II, and the four supporting legs are connected with four corners of the automotive chassis. The apparatus can realize rapid transshipment of objects with large mass, reduces requirements on a pavement, has good maneuvering capability, lowers down technical requirements on operation personnel and overcomes rapid transshipment of large-mass objects on outdoor fields.