Abstract: Based on FY－2C satellite retrieval products，taking the artificial precipitation enhancement operation in Sichuan on May 8，2013 as an example，the cloud top temperature，cloud top height，cloud effective radius，cloud liquid water path and cloud optical thickness were retrieved．In addition，by using automatic weather station data and radiosonde data，the physical examination of the effect of this operation was conducted．The results show that before the operation，the cloud top temperature was－13℃，the effective radius was 10μm，the cloud body was thick，and the cloud was rich in supercooled water．There was a good opportunity for precipitation enhancement．After the operation，the clouds in working area grew thick，cloud top temperature dropped，the effective radius increased at 25μm，the conversion process of ice and water was accelerated．And more precipitation occurred and increased much significantly．After the operation，there were no significant changes in various cloud physical parameters in contrast area with inadequate rainfall．