Abstract: Using the data from Typhoon Almanac, rain gauges and ERA-interim 1 ° × 1 ° analysis data, the tropical cyclones that landed on the western part of Guangdong and moved westward (or northward) in the years 1980~2015 were analyzed. The results are shown as follows. Nearly half of these tropical cyclones caused heavy rainfall in eastern Guangdong and there is no direct relationship between typhoon landing position and heavy rain areas in this part of the province. Neither a landing position closer to Zhuhai nor a stronger landing strength makes heavy rain more prone to occur in Eastern Guangdong. The intensity of tropical cyclones concentrates mostly on the level of (strong) tropical storm when eastern Guangdong receives very weak precipitation (< 10 mm). Low-level jets (from the south, east and southeast) and typhoon troughs of the boundary layer are important causes of the heavy rain in eastern Guangdong. The fact that eastern Guangdong is to the southwest or south of the edge of a West Pacific subtropical high is also favorable for heavy precipitation to happen. The humidity of 700~500 hPa obviously affects the possibility of heavy rain in eastern Guangdong.