Lifting appliance of crane

The utility model discloses a crane lifting appliance which comprises a transverse body, mounting rings are welded on two sides of the top of the transverse body, guide blocks are fixedly connected on two sides of the bottom of the transverse body, a lifting seat is arranged below the transverse body, mounting seats are mounted on two sides of the lifting seat, and a traction rope is wound outside a winding roller. According to the crane lifting appliance, the driving motor, the traction rope, the mounting base, the winding roller and the connecting rotating shaft are arranged, the driving motor is started, under the action of the driving motor, the connecting rotating shaft is driven to rotate, the winding roller is driven to rotate synchronously, the traction rope can be driven to be downwards placed along with rotation of the winding roller, and the traction rope vertically moves in the guide rod; the bottom of the traction rope is fixedly mounted on the mounting seat through a bolt, the lifting hook is in