All sided ecological environment background of Geermu Lhasa section of railway on Qinghai Tibetan plateau are analyzed. There are many indications that the ecological environment along the Geermu Lhasa section of Qinghai Tibetan railway is of unique peculiarity, sensitivity, fragility, and regional difference. If some special effective environmental protection measures were not taken in construction period, the negative impact would occur because of tremendous quantity of cubic meter of earth and stone. Finally, a series of environmental protection measures are progressed. If these measures could be adopted by the construction company, the negative impact would be reduced to the least, and the ecological environmental quality would return to normality