This study was conducted to compare leaf anatomical structures and ap-parent plant print characteristics of 3 Vicia plants from Changbai Mountains applying structural botany principle and fingerprint identification technology, aiming at dis-cussing the structure evolution law of Vicia plants and providing scientific reference for research about classification, genetic relationship and evolutionary trend of this genus. The comparison of leaf anatomical structures of Vicia lilacina, V. pseu-dorobus and V. unijuga_showed that: V. unijuga has tidily arranged leaf epidermal cel s, thickened outer tangential wal cuticle, large diameter of xylem vessels, and developed midrib fibrocytes which form vascular bundle sheaths. Plant print identifi-cation results showed that the tested 3 plants showed remarkable differences in leaf apparent texture and anticlinal wal type though plant print characteristics of appar-ent structures of plants in the same genus had homologous similarity. V. lilacina_has no subsidiary cel s, and apparent textures of V. pseudorobus_and V. unijuga are both of paracytic unequal type. Statistical analysis showed that V. unijuga is more advanced than V. pseudorobus. The 3 tested plants are in evolutionary rela-tionship of V. lilacina<V. pseudorobus<V. unijuga.