A new species of Impatiens L., I. fugongensis K. M. Liu et Y. Y. Cong, sp. nov., is described and illustrated. The species is restricted to the wet evergreen broad-leaved montane forests of Gaoligong Mountain in Northwestern Yunnan, China. Diagnostic morphological characters and seedcoat micromorphological characters that distinguish the new species from the related species, I. xanthina Comber and I. monticola Hook. f., are discussed.