This paper studied the changes of spatial and temporal distribution of rainfall in Ningbo City when different-type tropical cyclonesarrived, identified the placement of storm center and analyzed the frequency of the placement to find out the impacts of different tracks on theplacement. This paper also analyzed the relationship between different tracks of tropical cyclone and the average surface rainfall process inNingbo City, and revealed their inherent laws so as to provide useful help and guidance for the prevention of tropical cyclone in the future.