The invention discloses a stator structure of a multi-branch adjustable PCB winding. The PCB stator winding structure takes full advantage of wiring features of concentric cross windings and is designed as a multi-branch adjustable structure; each branch includes at least three identical concentric cross coils, and each of the concentric cross coils in each coil layer of each phase has positive and negative two lead-out terminals which can be connected in series or in parallel with two positive and negative outlet terminals of an in-phase coil of an adjacent branch to form a multi-branch series and parallel adjustable structures; each branch can further be used as a separate structure to provide separate power connection with external equipment. The PCB stator winding is designed with a unique four-layer core layer, the number of PCB stator winding layers characterized by the concentric cross windings is reduced to the minimum, difficulty and cost of the PCB manufacturing process are not only reduced, but also the axial length of a PCB is reduced, and the PCB stator winding is quite suitable for disc motors and occasions with critical axial dimensional requirements.