Laser cleaning system and method for protecting base material from being melted

The invention discloses a laser cleaning system for protecting a base material from being melted, and relates to the technical field of laser cleaning. According to the technical solution of the system, the laser cleaning system comprises a control module, a laser cleaning module, a temperature adjusting module, a temperature detecting module and a base material melting point data center, whereinthe laser cleaning module, the temperature adjusting module, the temperature detecting module and the base material melting point data center are connected with the control module, the laser cleaningmodule is used for focusing laser and cleaning base materials, the temperature detection module is used for detecting the temperature of a base material cleaning point and feeding back the temperatureto the control module, the base material melting point data center is used for recording a melting point value of each base material, the control module is used for comparing the fed-back cleaning temperature with the melting