The utility model discloses a release agent spraying machine for a movable mold table. The device comprises a movable die table, a frame body, a motor, a crank connecting rod mechanism, a reciprocating sliding beam, a first pipeline, a nozzle and a pressure supply system, the frame body is erected in the moving direction of the moving die table; the motor is arranged on a top beam of the frame body; the crank-link mechanism is erected on one side of the cross beam through a motor, the input end of the crank-link mechanism is connected with the output end of the motor, the reciprocating slidingbeam is arranged at the output end of the crank-link mechanism, the output end of the first pipeline is arranged on the reciprocating sliding beam, a plurality of nozzle holders are arranged at the output end of the first pipeline, and nozzles are arranged on the nozzle holders respectively; the pressure supply system comprises a storage box, a water pump and a pressure tank, the output end of the storage box is arranged at the input end of the water pump through a second pipeline, the input end of the pressure tank is arranged at the output end of the water pump through a third pipeline, theoutput end of the pressure tank is provided with the input end of a first pipeline, a one-way valve is arranged on the third pipeline, and an electromagnetic valve is arranged on the first pipeline.