Sanqingshan is located in the headstream of Xinjiang River Basin of the Poyang Lake in the middle course of Yangtz River and the Qiantang River. River systems in the south of the park mainly flow into Poyang Lake through Xinjiang River and An’le River while river systems in the north of the park mainly flow into Qiantang River and the East China Sea. The surface water here is mainly valley stream and its primary source is rainwater. The surface water resource here differs distinctively in different seasons that in rainy seasons it is plentiful while in dry seasons it is insufficient. Because there are many fissures between bedrocks, with strong water permeability, part of rainwater could directly permeate into these fissures and turns into underground water (tectonic fissure water). In all rocks with fissures there is rich water which offers favorable conditions for vegetation around the whole mountain. In shallow pits areas and gentle slopes, the weathering rock scraps and clay substance are in patchy distribution which more is pore infiltration water.