The invention relates to the technical field of motors, specifically a three-phase motor stator, including a casing, a stator mechanism is arranged on the inner wall of the casing, a clamping mechanism is arranged on the inner wall of the casing, and a Pressing mechanism, the interior of the casing is provided with a rotor mechanism, the surface of the rotor mechanism is provided with a fixing mechanism, and the stator mechanism includes a chute. When the stator winding needs to be replaced, the bolt is turned to disengage the bolt from the threaded hole, and then released. Fix the cover plate and the casing, then press the trapezoidal block, press the inclined block through the chute on the surface of the trapezoidal block, and then drive the inclined block to move, the inclined block drives the clamping block to move, and the clamping block drives the stator to the casing through the triangular slot The opening direction moves, and at the same time, the push rod drives the insertion rod to move, the insertion rod drives the slide plate to move, the slide plate pushes the stator to move to the opening of the casing, and then the stator is removed from the inside of the casing, thereby preventing the stator from being stuck inside the casing and making it inconvenient to take .