Abstract: The eastern part of Liaoning Province lies east of Tieling-Yingkou line. Its north is a mountainous area, belonging to the Changbai flora region. Its south is a hilly land of the Liaotung peninsula, belonging to the Huabei flora region and having some cold resistant subtropical plants. Mixed broadleaf deciduous and needleleaf forests, Pinus tabulaeformis and P. densiflora forest and deciduous broadleaf forests are zonal vegetations of the eastern part of Liaoning Province. However, the secondary Quercus mongolica forests and various shrubs are distributed widely. The eastern part of Liaoning Province may be divided into the following two vegetation zones: 1) The north is a temperate zone of the mixed needleleaf and broadleaf deciduous forest; 2) The south is a warm temperate zone of the broadleaf deciduous forest where the southeast of Xiong-yue-Qingyishan line is Pinus densiflora oak forest subzone and the north-west is Pinus tabulaeformis oak forest subzone.