Under the standard test conditions,the spectral form,the irradiance intensity and the spectral mismatch factor of artificial solar light sources are important factors that affect the accuracy of solar cell device test results.This paper takes the standardsolar spectrum AM1.5 as areference,then calculates and analyzes the changes of thespectral mismatch factor between the four commonly used artificial solar light sources (Arc lamp,Q-Flash lamp,Q-Flash W lamp and ELH lamp) and thestandard solar spectrum AM1.5 from the perspective of spectral mismatch,and also calculates and analyzes the changes in the output parameters of the crystalline silicon cell under the irradiation of these four artificial solar light sources.Calculation results show that the spectral mismatch factor of Arc lamp artificial solar light source is 0.979,and the output parameters of the crystalline silicon cell are closest to the output parameters under the standard solar spectrum AM1.5 spectral irradation;due to the influence of spectral mismatch,the output parameters of the crystalline silicon cell under the irradiation of four different artificial solar light sources will change significantly compared with the output parameters under the irradiation of the standardsolar spectrum AM1.5 spectrum.