The ability of forest communities to retain, absorb and intercept heavy metals from atmospheric deposition affects the output of heavy metals from streams in forest catchment areas, and determines the safety of local water. To explore the role of forest communities in the interception and purification of heavy metals in precipitation by typical forest types in northern subtropical in China, three forest ecosystem, Phyllostachys edulis plantation, Cunninghamia lanceolata plantation, and Cyclobalanopsis glauca broadleaf forest located in Miaoshanwu stand, Zhejiang Province, were selected and monitored from July, 2018 to June, 2019. Twelve precipitation events were sampled. The water samples of precipitation, throughfall, stemflow, litterfall, surface runoff, and river water in the forest catchment were measured. The water mass and dynamic changes of seven heavy metals (Pb, Zn, Cd, Cu, As, Ni, and Mn) mass concentrations and fluxes in water samples were analyzed. The results showed that the annual average concentrations of Pb, Cd, As, Cu, Zn, Mn, and Ni in precipitation were 0.974, 0.124, 0.512, 3.42, 36.7, 8.48 and 1.94 μg/L, respectively. The leaching amount of heavy metals Mn and Zn in the canopy of the three forest communities was extremely high, exceeding 2.78 times and 54.2 times the fluxes of atmospheric precipitation, while As and Ni in the precipitation were intercepted all forest communities. The analysis on heavy metals in dry deposition attached by leaves suggested that the Zn and Mn were the largest ones intercepted by leaves in forest canopies, reaching 0.692-8.02 mg/m² and 4.12-5.85 mg/m², which might be the largest source of these two heavy metals in forest precipitation. The litter layer exhibited a trapped effect on Mn, Cd and Zn, and the surface layer exhibited a strong interception effect on heavy metals in precipitation. Among them, Cyclobalanopsis glauca broadleaf forest had the strongest interception capacity, and Cunninghamia lanceolata forest was weaker. The three forest communities showed huge capacity to intercept metals ions in precipitation according to the runoff analysis and appeared no significant difference among the forest communities. The Miaoshanwu forest catchment area had a large amount of leaching of Mn, Ni, Cd and Zn, and only had a trapping effect on the heavy metals As and Cu, which may be related to the higher background value of heavy metals in the soil and the higher amount of dissolved heavy metals from acidic soils in the dry deposition received by forest catchment areas.