Abstract: The magnetic coupling problem of the electromagnetic suspension bearing not only affects the rigidity of the magnetic bearing, but also increases the control difficulty. To solve the problem of magnetic circuit coupling of electromagnetic bearings from the mechanical structure, a new radial hybrid magnetic bearing structure was proposed, and a radial hybrid magnetic bearing structure with 6 independent magnetic circuits and 4 poles (2 pairs of poles) was designed in this paper. The electromagnetic force analytical formula of the structure was derived by the equivalent magnetic circuit method, and the magnetic field distribution, electromagnetic force characteristics and coupling characteristics were simulated and analyzed by the three-dimensional finite element method. The calculation and simulation results show that the proposed radial hybrid magnetic bearing structure with 6 independent magnetic circuits and 4 poles (2 pairs of poles) can well realize the electromagnetic field decoupling in the radial direction. It provides a theoretical reference for the implementation of subsequent control methods.