Abstract:This paper reports the species, distribution and medical uses of Corydalis in Sichuan Province, of which 3 species e.g., Corydalis linstowiana and C. moupinensis, are found in China for the first time, 5 species C. balansae, C. trifoliolata e. g. are found in Sichuan for the first time. Medica effects of 10 species are discribed.