The invention relates to a cleaning derive, in particular to a cleaning device inside a solar energy heat collection pipe. The cleaning device inside the solar energy heat collection pipe is comprehensive in cleaning, can place the heat collection pipe well without affecting cleaning. According to the technical scheme, the cleaning device inside the solar energy heat collection pipe comprises a frame body, a handle, a rubber sleeve, limiting blocks, rubber plates, a motor, a rubber rotating rod and the like. The handle is installed on the middle part of the right side face outside the frame body, the rubber sleeve is arranged on the handle, the limiting blocks are installed on the upper portions of the left and right side faces in the frame body, and the rubber plates are installed on thebottom portions of the limiting blocks and the left and right side faces in the frame body. According to the cleaning device inside the solar energy heat collection pipe, the heat collection pipe canbe placed steadily through a support device without affecting cleaning; water is not needed to be continuously poured into the heat collection pipe for cleaning by people through a water injection device, convenience and swiftness are achieved, comprehensive cleaning is achieved, the heat collection pipe can be placed well, and the effect of cleaning is not affected.