In the paper, the author presents mainly characteristic of plantation forest on Thai Nguyen. There are curent status of vegetation, regenerate character of vegetations under canopy of leaf... Studying resuls natural are scientific basic of solutions to transfrom of plantation. In Thai Nguyen province, exist the follwing layers of plants: rainforests in low-level areas, rainforest in low-mountainous areas, woodland, bush, and the glass layer. Besides, there are forests of only one species, and also multi-species forests with some major kinds of plants such as eucalyptus trees and acacia(s). All these kinds are considered to grow at an impressive speed.