Xinfengjiang Reservoir (simplified Chinese: 新丰江水库; traditional Chinese: 新豐江水庫; Jyutping: san1 fung1 gong1 seoi2 fu3) or Wanlü Lake (万绿湖; 萬綠湖; maan6 luk6 wu4) is a man-made lake located in Heyuan, Guangdong, China, formed since the damming of the Xinfeng River (a tributary of Dong River) by the Xinfengjiang Dam.

Guangdong is located in an area of Humid subtropical climate and is full of water resources.

[2] Xinfengjiang Reservoir was founded in July, 1958 for preventing flood, regulating the river height and the shipping, irrigating farms etc., and completed in 1969.

Thousands of local residents had to settle in other regions, such as the higher land in Heyuan (it was a county at that time), Xinfeng, Longmen, Boluo, and so on.

In 2006, 6 members of parliament put forward a motion that Heyuan people are below the poverty line and wish to provide the wealthier Pearl River Delta with clear water.