The invention relates to a high-pressure gas flushing pipeline cleaning machine with a whole-process monitoring function. The high-pressure gas flushing pipeline cleaning machine comprises a rack, a control system, a high-pressure gas pipe, a water pump and a corresponding cleaning liquid pipeline; the high-pressure gas pipe communicates with the cleaning liquid pipeline through a tee joint; the outlet end of the tee joint is connected with a working pipeline; the high-pressure gas pipe is provided with an electromagnetic gas inlet valve, and the water pump is arranged on the cleaning liquid pipeline; the control system is composed of a control unit as well as an action control module and a power supply module which are connected with the control unit; the control unit is further connected with a GPRS communication module and a read-only memory; and the working pipeline is provided with a Y-shaped externally-connected tee joint, two connectors of the Y-shaped externally-connected tee joint are connected into the working pipeline, and the other connector is connected into an observer. The high-pressure gas flushing pipeline cleaning machine can effectively remotely monitor outside working information of equipment.