Abstract: The stator structure of axial flux motor is a printed circuit board (PCB), and the main sources of the loss of the PCB motor are AC additional loss and copper loss on the winding. Thus the design of stator winding has a direct influence on the effective utilization rate of the stator and the motor performance. This paper proposed a new type of distributed winding for PCB motors applied at high frequencies and stable operating conditions. This paper first established analytical formulas for back EMF, power, AC additional loss, and resistance. The no-load characteristics of PCB motors were analyzed. Secondly, for the purpose of improving the efficiency of the motor, it was proposed to add insulation line width to the effective conductor part of the winding to optimize the new winding to find the most suitable line width. Then according to the finite element theory, the load characteristics of the new distributed winding and the existing winding were analyzed and compared. The results showed that although the new winding improves the copper loss, it could effectively reduce the size of the eddy current loss. Moreover, not only the total loss was reduced, but also the stable temperature rise of the stator could be effectively reduced, and the new structure would not affect the output performance of the motor. Finally, an 8-pole 600W prototype was produced for verification, which had certain reference value for the design of PCB stator disc permanent magnet motor.