Steam cleaning system for aircraft surface

The invention discloses a steam cleaning system for an aircraft surface. The steam cleaning system for the aircraft surface comprises a steam generating device (1), a cleaning liquid tank (2), a booster pump (3), a cooling system (4) and a spray nozzle (5), wherein the steam generating device (1) is provided with an output end; the output end of the cleaning liquid tank (2) is connected with the output end of the steam generating device (1) through a pipeline, so that the same output pipeline is formed; the input end of the booster pump (3) is connected with the output pipeline formed by the cleaning liquid tank (2) and the steam generating device (1); the cooling system (4) is arranged in the output pipeline formed by the cleaning liquid tank (2) and the steam generating device (1); the spray nozzle (5) is connected with the output end of the booster pump (3). Compared with the prior art, the stain removal capacity of the steam cleaning system is higher, and the situation that the aircraft surface is damaged due to excessively-high temperature is avoided.