The transmission line forms of the power divider mainly include microstrip line, stripline, waveguide structure, etc, among which the connection between stripline structure and other transmission lines is a challenge. In response to this challenge, this paper proposes a hybrid transmission line one-to-four power divider with a stripline opening and directly connected to microstrip line. Through the analysis of the basic principles of the power divider via electromagnetic simulation software, the power divider is modeled and simulated, and the design method is verified by physical verification. The power divider has an input and output reflection coefficient of less than-10 dB and the isolation of 15 dB in the frequency range of 2~6 GHz, which achieves a good design effect. The bending design of the power divider meets the design requirements of miniaturization. This paper provides certain reference value and significance in the future research.