Abstract: Trillium tschonoskii Maxim. collected from the civilian, is found to be a new kind of medicine which can effectively cure hypertension, dizziness, headache, neurasthenia. This paper has recounted the characters of the plant shape, medical material(rhizoma root and fruit), tissue structure, powder ets, and also, has reported in detail the microscopic structure of the stem, leaf, flower of this species.