The invention relates to a verification processing method for a frame-shaped coil die, which belongs to the technical field of water wheel generators. The verification processing method for a frame-shaped coil die carries out adjustment and processing by adopting an adjustable angular template according to a fan-shaped piece and comprises the following steps of: (1) firstly, manufacturing an adjustable frame-shaped coil angular template; (2) modulating the adjustable frame-shaped coil angular template according to actual demand; (3) punching a stator fan-shaped piece by using the traditional stator fan-shaped piece punching die, placing the stator fan-shaped piece on an adjustable verifying die and installing a stator verifying rod in stator fan-shaped piece grooves at both ends for adjusting installation precision; (4) comparing the adjusted frame-shaped coil angular template with the geometrical span angle size of the stator fan-shaped piece and adjusting on the basis of the stator fan-shaped piece; and (5) assembling the adjusted frame-shaped coil angular template for manufacturing a reshaping die. The invention has the advantages of simple process, short adjusting time, time saving, labor saving, reliable operation, economy, practicability, high production efficiency, saving of the cost of the stator fan-shaped piece punching die, and the like.