Abstract: In order to insight into the mechanism of summer rainstorm occurred in central Shandong Province and improve the prediction accuracy further, the author used FY-2E satellite TBB data and NCEP/NCAR reanalysis 1°×1° 6 h, the Anqiu City on July 18, 2010 diagnosis and TBB to weather dynamics process of a heavy storm cloud image analysis. The results showed that: the Anqiu torrential rain was by the subtropical high and upper trough and ground cyclone system produced by the common effect; TBB strong low clouds with cloud band along the low level jet direction, and closely associated with water vapor and energy belt, heavy rain occurred in the north of TBB light in low temperature zone, the release of unstable energy in Anqiu area above; vertical spiral degrees when the center position and intensity of cyclone with the ground movement and strength changes had very good corresponding relationship.