The invention relates to a permanent magnet two-phase brushless sub-stator motor, which comprises a stator, a main winding, an auxiliary winding, a permanent magnet rotor and a starting device, and is characterized in that: the stator consists of at least two sub-stators; the slot number of the sub-stators is the multiple of 3; the total slot number of the stator is the multiple of 6; and an eccentric gap is not formed between a stator tooth and the permanent magnet rotor. The motor has the advantages that: 1, the defect of vibration and noise generated by magnetic flux distortion due to the eccentric gap in the prior art is overcome; and 2, the eccentric gap is not formed, so the motor can rotate clockwise and anticlockwise, and the application field of a product is expanded. In addition, due to a sub-stator structure, a winding machine special for the sub-stators has a high speed, a few copper or aluminum wires are used, and working hour and materials are saved.