Abstract: Adonis amurensis Regel et Radd.grows wildly in Northeastern China,and both its roots and aerial parts possess cardiac-tonic and diuretic activities.It has been recommended as a substitute for Adonis vernalis L. This paper gives detail descriptions of the morphological and histological characters of various parts of the whole plant,i.e.,root,rhizome,stem,scale leaf,leaf and flower, together with eigbt plates of illustration.