The invention discloses a novel lithium battery packing device. The novel lithium battery packing device structurally comprises a rack, a vacuum pumping assembly, a positioning forming assembly, a battery-mounting assembly, pressure gauges, working state indicating lamps, a packing material film-retracting frame and a heating-wrapping packing assembly. The surface of the front end of the rack is sunken backwards to form a groove; the vacuum pumping assembly is perpendicularly connected to the lower surface of the inner side of the groove; the positioning forming assembly is fixedly welded to the surface of the lower end of the vacuum pumping assembly; the battery-mounting assembly is movably connected to the upper surface of the inner side of the groove in the surface of the front end of the rack; and the heating-wrapping packing assembly is movably connected to the lower portion of an internal cavity of the rack. In the packing operation process of lithium batteries, certain heating-wrapping treatment can be conducted on machining parts when the battery-mounting assembly of the device works so as to guarantee that the sealing, dampproof and anti-pollution properties of packed finished products reach the optimal state, the quality of the packed finished products is guaranteed, and the practical property of the device is improved effectively.