The utility model relates to a wooden case box opener, it includes by the topside, base and two square frame that the side encloses, square frame's the vertical slidable mounting in lower part has a crossbeam, last the installing of square frame can compress tightly the elastic compression mechanism on the base downwards with the crossbeam, square frame is last still to be installed to carry the sheave that the crossbeam is upwards mentioned and draws the mechanism, the level of installing on the base leans out square frame's fixed wedge plate forward, the lift wedge plate that the level leant out square frame is forward installed to the bottom of crossbeam, fixed wedge plate and the transversely crisscross setting of lift wedge plate. The utility model has the advantages of simple structure, convenient operation is laborsaving and can not cause the damage to box inside.