The invention provides a cleaning aerosol which is used for cleaning multiple pneumatic tools. The cleaning aerosol mainly comprises an environment-friendly organic solvent, lubricating oil, a lubricating oil solvent and a propellant; based on the physicochemical properties of the components, the aerosol is naturally layered in an aerosol tank, wherein the cleaning component stays below, the lubricating component is in the middle, and the propellant stays above to prepare special aerosol. In cooperation with a special actuator, the cleaning aerosol can be propelled into a pneumatic tool without disassembling the pneumatic tool; and during no-load rotation of a pneumatic motor, the cleaning and lubricating of the pneumatic tool are finished once. Therefore, a cleaning effect can be realized without disassembling the pneumatic tool, the operation is simple and quick, the functions of cleaning and lubricating without disassembly are realized, and the time and the labor are saved; and the usability of the pneumatic tool is quickly recovered.