To further improve the accuracy in the reliability screening for solar cells,the previous 1/f noise method is improved whose analysis fre quency is single,accidental factor is big and anti-interference ability is poor.A new method making use of the entire low fr equency noise (0.25－10kHz) in the reliability screening is put forward:the Gower similarity coefficient reliability screening (GSCRS) method.First,we build a system to measure low fre quency noise power spectra of 130solar cells in the same batch.Then,through the low-freq uency measurement system,we divide these 130solar cells into three groups according to GSCRS method:GroupⅠ (the highest reliability),GroupⅡ and GroupⅢ (the lowest rel iability).Last,we compare the 1/f noise method′s result with the GSCRS me t hod′s result and illustrate the reason why GSCRS method is more accurate and reasonable through four typical solar cell samples. Experimental results indicate that for the same 130solar cells,the 1/f noise method′s result is:GroupⅠ contains 44solar cells,GroupⅡ contains 50solar c ells,GroupⅢ contains 36solar cells and the GSCRS method′s result is:GroupⅠ contains 34solar cells,Group Ⅱ contains 42solar cells,and GroupⅢ contains 54solar cells.Compared with the 1/ f noise method,the GSCRS method improves the accuracy of the solar cell reliability screening and it is s uitable for high reliability applications.