Laser technology as one of the most important manufacturing tools in industry has entered the solar cell production processes in almost all aspects. Laser processing is extensively applied in the complete production line of major parts of high efficiency solar cells based on silicon wafer today,including laser edge isolation,grooving,drilling,soldering,etc. The thin-film solar cells which are on the threshold between development and mass production exhibit further potential in the reduction of production costs and also provide many opportunities for laser processing like laser scribing,laser edge deletion,etc.