Gel-assisted laser cleaning method

The invention provides a gel-assisted laser cleaning method which comprises the following steps: dissolving agar powder in deionized water and carrying out ultrasonic dispersion treatment to prepare an agar powder dispersion liquid; at a first preset temperature, stirring the agar powder dispersion liquid for the first time and completely dissolving the agar powder to prepare a mixed solution; stirring the mixed solution for the second time, and reducing the temperature of the mixed solution from the first preset temperature to a second preset temperature to prepare liquid gel; uniformly coating the surface of the to-be-cleaned part with liquid gel so as to form a gel layer with a preset thickness on the surface of the to-be-cleaned part; and the pollution layer of the to-be-cleaned part is cleaned through laser, and the gel layer is removed after cleaning is completed. The laser cleaning device has the technical effects that the design is reasonable, the cleaned part can be well protected against high-temper