In order to satisfy the needs of ocean color wide coverage and high sensitive detection,the large field push-broom imaging spectrometer is developed,and its stray light is studied.Due to the great differences of field of view at across orbit and along orbit direction in push-broom imaging spectrometer,stray lights at across orbit direction are more than those at along orbit direction,which leads to significant differences in images.In order to reduce the effect of stray light on ocean color quantitative inversion,a stray light model is set up,and a correction method of stray light is proposed.The quantitative characterization of the correction is given.Experiment results show that this method can effectively reduce the impact of stray light.