Abstract: Based on conventional meteorological data, satellite images and numerical weather prediction products and other information, a strong convective precipitation processes appeared in Tongliao City on 15-16 July, 2011 was analyzed. Result showed that enabling large-scale circulation, abundant water vapor, the existence of high-altitude jet, low-altitude water vapor convergence, strong upward motion and unstable energy role were extremely favorable factors to stimulate the convective precipitation. If some experience and indicators are summaried based on the precipitation process and then are used in forecasting in the future, they would provide some reference for strong convective precipitation forecast and play an important role to improve forecast accuracy.