A statistical research based on hourly infrared cloud top black body tempera-ture (TBB) data from GMS during summer 1995 is conducted to show the synoptic climatol-ogy of convective activities over the Plateau and its adjacent regions. Some results are ob-tained as follows: There are three discrete major areas where convective activties frequently occur; they are, in the order of precedence, Bay of Bengal to India, the Qinghai-Xizang Plateau, and Laos to Leizhou Peninsula. The most frequent convective region over the Plateau is centered at 30°N, 90°E, not in the eastern Plateau. There are few convective ac-tivities at the delta exit of the Yarlung Zangbo River. The convective activities over the Plateau have a pronounced diurnal cycle and the strengtheming process in the cycle is more rapid than the weakening process. In addition, both inter-monthly variations and diurnal cycle of convective activities over Bay of Bengal to India and the Qinghai-Xizang Plateau are different.