The erratic bouIders in gIacier are tremendous rock bIocks transported by glacier，may cross over mountain after mountain to reach a remote site．Block size varied，the greater one up to 10-20m，widely different from autochthonous．Allochthonous drift boulders with scratchs on surface are considered as a main evidence，strongly supporting the glacier kinematics．In the area from Dapailing to ChangIing there are distributed tremendous erratic boulde rs aII over the field, which are the rocks carried from Mt. Lushan.