In order to study the differences of attenuated backscatter characters of global clouds and aerosols obtained from the cloud-aerosol lidar with orthogonal polarization (CALIOP) the latest version of Version 4(V4) and Version 3(V3) products separately, and the potential impacts on previous studies. The CALIOP two vertical products in January, April, July and October of 2011 are used to gather probability distribution statistic of clouds or aerosols 532 nm total attenuated backscatters, 1064 nm attenuated backscatters and total attenuated color ratios respectively below the altitude of 20.2 km all over the world. And the relative deviation of two different versions of the corresponding data is made statistical analysis. The results show that the relative deviations of the attenuated backscatters between V4 and V3 products for clouds and aerosols tend to be positive values, and the changes from V3 to V4 data are more obvious at nighttime than those at daytime for both clouds and aerosols. The mean relative deviations from V4 and V3 of clouds daytime 532 nm total attenuated backscatters, 1064 nm attenuated backscatters and total attenuated color ratios are 3.40%, 4.66% and 1.18% separately, and those of clouds nighttime data are 2.80%,8.00% and 5.33% separately. The mean relative deviations of aerosols daytime 532 nm total attenuated backscatters, 1064 nm attenuated backscatters and total attenuated color ratios are 1.14%,6.94% and 5.62% separately, those of aerosols nighttime data are 3.33%, 10.92% and 7.64% separately.