The invention provides a transmission type plate shearing machine. The plate shearing machine comprises a crossbeam, a main shaft arranged under the crossbeam, a reducer arranged at the right end of the main shaft, a gear arranged at the left end of the main shaft, a connecting rod, a flywheel, an electric motor, an upper tool carrier arranged under the main shaft, an eccentric swage arranged under the upper tool carrier, guiding grooves arranged in the end of the eccentric swage, a lower tool carrier arranged under the eccentric swage, and a rack arranged under the lower tool carrier; the flywheel is located on the right side of the gear; wherein the connecting rod, the flywheel, and the electric motor are arranged on the main shaft; the electric motor is located on the right side of the flywheel; the connecting rod is located on the left side of the reducer. The transmission type plate shearing machine has the advantages that the processing benefit is high, the processing quality is good, and the service life is long.