The front section of the double gun rod of the high-pressure power cleaning machine can be used in conjunction with the rear section of the gun rod. Its advantage is that it can be removed and installed from the rear section of the gun rod at any time, which is easy to carry, easy to use, and firmly connected. The front section of the double gun rod can be installed with two nozzles at the same time. Usually, one nozzle is a low-pressure nozzle and the other nozzle is a high-pressure nozzle; the two nozzles can be switched through the side handle at the back or the top knob; when switching to the low-pressure nozzle, the detergent can be sucked in through the siphon valve and mixed with high-pressure water to form a cleaning mixture, which is sprayed on the surface of the object to be cleaned to enhance the decontamination effect; then switch to the high-pressure nozzle to rinse off the sewage to achieve the cleaning effect. This design is easy to use. Spray the cleaning mixture to remove dirt, and then switch to high-pressure water for flushing. There is no need to change the spray gun or gun rod, and it can be done in one go.