Compared with general motors, the large-scale submersible induction motor currently has the problem of excessive electromagnetic noise. The electromagnetic noise of largescale submersible motors can be reduced by using a radial skewed slot structure, but there are still some deficiencies. Based on the radial skewed slot structure, the electromagnetic noise is further weakened and other performances of the motor are improved by adjusting the twisting distance of the radial skewed slot. The electromagnetic noise of each scheme is analyzed and compared by using the multiphysical field coupling finite element simulation, and the correctness of the above method is verified.