Updraft is one of the basic conditions for the formation of cloud and rain. In this study, the distribution of vertical velocity in clouds, the microstructure characteristics of clouds and their correlation are analyzed using airborne particle measurements of a stratified mixed cloud conducted in Hebei Province in May 2017. The results show that the vertical velocity in clouds is parabolic with height, which is smaller at the bottom of the cloud (0.75 ± 0.52 m s-1), largest in the middle of the cloud (3.64 ± 2 m s-1), and smallest at the top of the cloud (0.32 ± 0.29 m s-1).With increasing height, the shape of ice particles in the updraft zone of clouds is mainly flaky, needle-like, and column-like in order. In the updraft zone of warm clouds, the vertical velocity and liquid water content are positively correlated, with a correlation coefficient of 0.61; the cloud droplet number concentration and maximum cloud droplet diameter under strong vertical airflow conditions are larger than the corresponding values of weak updraft, and the cloud droplet number size distribution measured in strong vertical airflow is more consistent with the Г function distribution.