In June 5th to 6th 2015,three species of plants were found at the elevation between 747 to 772 around Xirang Village,BeiBeng Township,Medog County of Tibet,and specimens of them were collected.By identification,they were Balakata baccata,Artocarpus heterophyllus and Bombax ceiba.B.ceiba was the first recorded plant of Bombacaceae in Tibet.Balakata baccata and Artocarpus heterophyllus were the newly recorded of plant species to Tibet.The discovery of three plants enriches the flora of Tibet,and deeply proves the thesis that the rain forest also distributes in the southeast of Tibet.