Abstract: To suppress the radio frequency interference among multiple antennas in a satellite system, a filtering power divider module for satellite antenna front-end is designed. This module adopts the principle of series connection between the filter and the power divider network. Through the analysis of the equivalent circuit of the low-pass prototype filter and the power divider network, the design method of electrical performance and environmental adaptability of the filtering power divider module is introduced. Model simulation and parameter optimization are performed using HFSS simulation software, and physical objects are made for data testing. The physical test results are as follows: VSWR<1. 06,channel insertion loss<0. 21 dB, in-band amplitude fluctuation is 0. 05 dB, amplitude consistency between channels is ±0. 1 dB, phase consistency between channels is ±1°, out-of-band rejection >33dB(X-band). The actual test results are consistent with the simulation results.