Abstract:The concentration distributes area of natural population of Malus baccata (L.) Borkh are locate in N 49º11´~50 º40´，E 119°42´~120°16´, altitude from 620m to 670m, present a form of band and covered the connection of half-moisture land between Foothill of Da Xinganling and Plain of Hu Lunbeier, cover the surface of 230km2. Be preserved naturally. 423 of individuals were tested and indicated that, 1 to 400 years old of tree-age were found, and 37% of them were form 30 to 40 years old. Upright and open were the 2 mainly types in tree’s figure, dropping style take the occupation of 14%. Tree’s height and diameter presented a trend of Positive Tai Distributes, dwarf type were 19.8%. Fruit’s color were found through yellow, red-purple and dark-red took the occupation of 43.8%, yellow 4.5% and purple 3.2%. Acid types including sweet-acid were 72.9% in generally. Under the condition of natural pollinate, 47.7% of them bearing 3 fruits in one inflorescence, 26.5% of them with 5 fruits, and 3.5% with no fruits. The figures of oblate, round, oval and oblong were presented in leaves and fruits, there are no correlations between fruits and leaves. Based on GPS, rivers trend, geomorphology character, tree-age, records compared with genetic analysis and the results of references. We conclud that Malus baccata (L.) Borkh is inferior-geography species of Malus baccatus .Jiang which accumulated in the north-west valleys of ‘Da Xinganling’, altitude on 800m, seeds were carried by rivers and birds, and followed by the rivers of Yi Min, Gen, Hai Laer and Ya Lu, migrating in the towns of Hei Yangzhan, Meng Gutun, Ha Kezhen and Hong Jilabu, which were belonged to the city of Hai Laer and Manzhouli. They were adapted and reproduced, then formed the second class evolution areas.