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In order to study how a pulsed magnetic field emission coil produces a stronger magnetic field under the same excitation source, this paper makes a detailed analysis of A method, at the same time, the Ansoft Maxwell finite element simulation software is used to simulate irregular circular and triangular pulsed magnetic field emission coil. We can know from the results of analysis and simulation that the magnetic field intensity of a circular coil is stronger than that of a triangular coil when the radius of a circular coil is equal to the bottom edge of a equilateral triangle coil, that the inclination of the side of the coil can change the direction of the magnetic lines of flux, and the intensity of the magnetic field is strengthened. Several methods of optimizing the coil design in this paper can provide some guidance for the optimization design of the pulsed magnetic field coil.