To improve performance of the magnetohydrodynamic angular velocity sensor in detecting signals at low frequency (<1 Hz), a new magnetohydrodynamic angular velocity sensor with multiple magnetohydrodynamic pumps is proposed, which is based on the magnetohydrodynamic angular velocity sensor. In the aspect of improving the mechanical structure, three magnetohydrodynamic pumps are constructed uniformly around the edge of the fluid channel. To enhance the Coriolis force effect at low frequency, the magnetic pole shape of the fluid pump is optimized to improve the magnitude and stability of the radial flow velocity distribution. Compared with the single pump structure, the simulation and experiment results of the designed structure with multiple MHD pumps show that the radial velocity distribution is increased by 20. 28% , and the magnetic field uniformity of fluid pump channel is increased by 38. 36% . Results indicate that the modified sensor with the applied low frequency compensation current can detect the angular velocity signal at low frequency. Through the whole bandwidth, the amplitude fluctuation error is less than 0. 5% , and the phase difference is reduced to the range of 0~10°.