Abstract: The Cloudsat satellite data during June 2006 to April 2011,were used to investigate the cloud vertical profiles over the East Asian region (20°-50°N, 80°-120°E),with particular emphasis on comparing the differences between radar reflectivity profiles of precipitation and non-precipitation clouds, as well as seasonal variations of these profiles. The results show that: (1)Ucnerally, the radar reflectivity of precipitation clouds mainly locates at below 8 km with dBz between -20 and 15,while the radar reflectivity of non-precipitation clouds locates at 4-12 km with dBz between -28-0 with the radar reflectivity of precipitation being able to usually reach to ground;(2) there are differences among liquid precipitation,solid precipitation, and possible drizzle precipitation clouds profiles;(3) the radar reflectivity increases gradually from 11 km to 7 km with the temperatures always below 0℃ in liquid precipitation clouds,suggesting that condensation and collision-coalescence processes play a vital role in the formation of large-size liquid drops;(4) the frequency distribution of temperature at -15℃ is consistent with the high radar reflectivity in solid precipitation clouds, meaning that the temperature at -15℃ or so is advantageous to deposition and accretion processes; (5) the vertical distribution of liquid precipitation clouds changes slightly from spring to autumn, but mainly in the low-level in winter; the vertical distribution of solid precipitation clouds changes with alternate double and single high-frequency with the season,and this is consistent with the variation of the frequency distribution of temperature at -15℃;the non-precipitation clouds vertical distribution changes little with season;and (6) the deep connective and nimbostratus clouds are the major types of cloud generating precipitation drops.