Laser remote foreign matter removing instrument and using method thereof

The invention relates to a laser remote foreign matter removing instrument and a using method thereof. The laser remote foreign matter removing instrument comprises a laser, a spectroscope and a target imaging module, a laser beam generated by the laser is emitted to a target foreign matter to form a laser spot with high power density on the target foreign matter, and the target foreign matter isremoved by melting or burning. A laser beam generated by the removing instrument is usually invisible to human eyes. Therefore, the removing instrument needs to emit the laser beam, and needs to imagethe target foreign matter, so that before the laser beam removes the foreign matter, the hitting position of the laser beam can be determined by observing the target image, the position of the targetforeign matter needing to be hit coincides with the position of the aiming point, and then the foreign matter is removed. According to the invention, non-contact, long-distance and high-efficiency removal of the target foreign