The invention discloses a lifting frame for mounting a vibrating motor. The lifting frame comprises a lifting hook and fixed pipes; wheels are arranged at the bottom of a gate type big frame; two symmetrical supporting frames are arranged above the gate type big frame; the fixed pipe is arranged on each supporting frame; a bearing is arranged on the end part of each fixed pipe; a moveable pipe is assembled in each bearing; a bearing cross beam is arranged at the central position of the moveable pipe; the fixed position of the bearing cross beam and the moveable pipe is the 1/3 to 1/4 position of the bearing cross beam; a U-shaped ring is arranged on the end part of the bearing cross beam; the lifting hook is arranged below the U-shaped ring. The lifting frame is reasonable in structure and good in use effect, can facilitate time saving and labor saving for processing workers and improves the processing efficiency of a vibrating sieve.