The invention discloses a power patch resistor for a high-frequency microwave communication circuit assembly, comprising a base, wherein the upper surface of the base is provided with a placement groove, the inner wall of the bottom end of the placement groove is overlapped with a patch resistor body, a first fixing block of a cavity structure is fixedly connected to the right side surface of theinner wall of the placement groove, a spring is fixedly connected to the right side surface of the inner wall of the first fixing block, and the left end of the spring is fixed connected with a connection block. In the power patch resistor for the high-frequency microwave communication circuit assembly, by setting a pressing block, a second connecting rod, a threaded hole, a threaded rod, a knob and a fixing rod, the threaded rod drives the pressing block to move downward, so that the pressing block squeezes the patch resistor body to strengthen the fixing of the patch resistor body, and prevent movement. Through the overall installation, the invention changes the traditional welding method, and improves the working efficiency, and is compact in structure, reasonable in design, and strongin practicability.