The high pressure cleaning machine hollow handle double gun rod is directly connected to the spray gun, and the connection is firm. Two nozzles are installed at the same time, one low-pressure nozzle and one high-pressure nozzle. The switch is achieved through the middle side handle or the top adjustment knob. When using the low-pressure nozzle, you can open the siphon valve to inhale the detergent and mix it with the high-pressure water to form a cleaning mixture, which is sprayed on the surface of the object to be cleaned to enhance the decontamination performance; then switch to the high-pressure nozzle for the final flushing action to flush away the dirty water on the surface of the object to achieve the cleaning effect. This design does not require the replacement of the gun rod, and different functions can be switched directly in the middle of the gun rod. It is convenient and quick to use, bringing users a better cleaning experience.