Lancang country is rich in medicinal plant resources. Local people have kept the tradition of using medicinal plants to prevent and treat diseases for generations. In this paper, Wendong village, Donghui village and Jiujing village have been selected to investigate the medicinal plant resources in Lancang country, methods such as interviewing local persons, free listing, participatory survey and related literature reference were applied. A total of 58 species was collected, which belong to 55 genera in 35 families. Chinese names, Latin names, medicinal parts, processing methods, medicine function and main effects were recorded about them. The characteristics and features of utilization of the plant resources were also analyzed.