IFBOT X3 is the smallest and lightest photovoltaic cleaning intelligent robot with a unique rotation operation mode. Under the design concept of light weight, there is no need for supporting facilities and convenient handling. This cleaning robot allows one person to easily complete the workload of ten people. Which completely solves the cleaning problems of various types and sizes of PV modules. The IFBOT robot attaches itself closely to the surface of the photovoltaic panel through movable suction cups. The misplaced auxiliary suction cups enable it to walk freely on the smooth inclined surface of 0-75° more stably. The integrated sensors enable the robot to accurately detect the edge of the array, automatically adjust the Angle, and automatically calculate the optimal and most effective cleaning route. Each cleaning unit is equipped with two oppositely rotating nanofiber roller brushes, which can pick up the dust particles adsorbed on the surface and gather them, and then suck them into the dust box instantly by the centrifugal force of the turbocharged centrifugal fan.