Abstract: Vertical distributions of atmosphereic density and temperature over Wuhan (30.5N, 114.4E) from ground to 65km have been obtained by Rayleigh Scattering Lidar with high temporal and special resolution and radiosondes. A method to derive the density and temperature from the photon counts collected by lidar is described briefly. The density and temperature profiles agree very well with MSISE-90 atmosphere model and the temperature difference between the derived profiles and model were less than 3 K near the stratospause. The errors involved in the derived values are presented and analyzed. Preliminary analysis of temperature variations in a night revealed fluctuations with characteristics resembling those large-scale gravity waves.