The Axial flux permanent-magnet machine (AFPM) has the characteristics of compact structure, high power density and torque density, but its annular air gap causes the inconsistent electric loading of the inner and outer stator, resulting in insufficient utilization of the outer teeth. A new stator structure with segmented stator teeth and its winding design scheme were proposed in this paper. The stator teeth are divided into inner and outer teeth by setting stator ring slot. The width of the outer teeth is reduced. The space of the reduced stator teeth and the space of the stator ring slot is used to increase the second winding structure, so as to increase the electric load of outer machine. In addition, the improved structure was qualitatively analyzed by constructing equivalent magnetic circuit method, the magnetic density distribution, no-load back EMF and torque of the improved structure were evaluated and analyzed by the finite element method. The results show that the improved structure can optimize the magnetic density distribution of the stator core, improve the core utilization and torque. The effectiveness and excellence of the stator structure with segmented stator teeth and its winding are verified by analysis and simulation.