The invention discloses a winding device for a stator iron core of a motor, which relates to the technical field of machinery. It includes a winding machine and a stator core, and an automatic adjustment mechanism is arranged outside the stator core, and the automatic adjustment mechanism includes a ventilation plate, a telescopic rod, a rotating column, a slide plate, a pull plate, a pull rod, a support plate and a pressing block, The telescopic rod penetrates and is slidably mounted on a rotating column, the rotating post is rotatably mounted on the ventilation plate, the top of the telescopic rod is rotatably mounted on a slide plate, and the slide plate is slidably mounted on the air outlet end of the ventilation plate. The winding equipment for the stator core of the motor can effectively dissipate heat from the wound silicon steel sheet and the stator core by setting an automatic adjustment mechanism outside the stator core without causing waste of wind power resources, and at the same time Through the cleaning mechanism inside the cleaning box, impurities such as engine oil on the surface of the silicon steel sheet can be effectively scraped and cleaned to improve the adhesion of the silicon steel sheet.