The utility model discloses a cleaning device for cleaning oil charge equipment in power industry, relates to the cleaning device for the oil charge equipment, and solves the problems that large-scale oil charge equipment in the power industry can only be manually and superficially cleaned, equipment like a heat radiator has a dead angle so as to be difficultly cleaned, so that time is wasted, efficiency is low, the price of a special cleaning tool for cleaning the oil charge equipment is expensive and cleaning cost is high. One end of a second communication pipe is communicated with a water inlet on a water pump, and the other end of the second communication pipe is communicated with the bottom of a water tank. One end of a first communication pipe is communicated with a water outlet on the water pump, and the other end of the first communication pipe is communicated with the water inlet of a high-pressure water gun. One end of a third communication pipe is connected to the side wall of the second communication pipe and is communicated with the second communication pipe, and the other end of the third communication pipe is communicated with the bottom of a cleaning agent bottle. The cleaning device is used for cleaning the oil charge equipment in the power industry.