This paper proposes an improved Wilkinson power divider design scheme to solve the low port isolation and large insertion loss in the front-end power divider module of the multi-channel transceiver in wireless communication.Based on the principle of Wilkinson power divider, this design uses the 1/4 signal wavelength transmission line itself to increase the space between the power distribution ports, thereby reduces the insertion loss caused by additional transmission lines.And the HFSS electromagnetic field simulation tool is employed to obtain the wavelength of the signal in the transmission line.According to the proposed scheme, both 1 to 2 and 1 to 4 Wilkinson power dividers are designed.The simulation results show that this design can effectively reduce the insertion loss and improve the port isolation of the power divider.