The effects of aerosols on cloud macro-physical,microphysical and radiative properties at typical sites are analyzed using the objective cloud observations from CloudSat and the passive aerosol retrievals from MODIS(Moderate-Resolution Imaging Spectroradiometer).Results show that aerosols have significant impact on cloud over both continental and marine sites.With the increase of aerosol optical depth(AOD),the low(high) level cloud fraction at sites with relative weak water vapor conditions shows decrease(increase) trend,while the cloud fraction of all altitudes increases at sites with relative strong water vapor conditions.With the increase of AOD,occurrence probabilities of cloud layers with high(low) cloud top height at each site show an increase(a decrease) trend.With the increase of AOD,the effective radius of cloud droplet and ice crystal decrease,both the shortwave and longwave cloud radiative forcings at atmosphere top are enhanced,the increase of absolute value of shortwave cloud radiative forcing is large,and the increase of longwave cloud radiative forcing is relatively larger at all sites.The variations of meteorological elements under large(small) AOD conditions indicate that the significant changes of cloud physical and radiative properties with AOD can not be explained by large scale dynamical influence.