Abstract: Investigations by line transect method and sample plot were carried out from September 2014 to September 2016, on medicinal plant resources in Simingshan National Forest Park, Zhejiang province. The results showed that there were 783 species belonging to 189 families and 508 genera in the park, which accounted for 49.35%, 22.01% and 6.96% of the total medicinal plant resources in China. About 62.71% of the medicinal plants (491 species) in the park were herbs, 178 species of woody plants, 72 species of vine, 33 species of epiphytes and 9 species of parasitic plants. 421 species in the park were for heat clearing, accounting for 54.04% of the total, 116 species for expelling wind-damp, 69 species for activating blood circulation to dissipate blood stasis, 40 species for hemostasis, 27 species for phlegm cough and asthma, 22 species for expelling intestinal parasites, 18 species for relieving exterior syndrome, 16 species for relieving dyspepsia, 14 species for activating qi and 36 species for others. 134 species of medicinal plants in the park were listed in the Pharmacopoeia of the People’s Republic of China（2015）, indicating rich resources of medicinal plant in Simingshan National Forest Park.