Under the restriction of GPS observation data and results from seismological study, in two models of China continent lithosphere which have different viscosity coefficients, the relationship between the intensity of plate driving force on the plate boundery and the viscosity coefficients of model is numerical simulated.The geodynamic driving mechanism of continental lithosphere movement in China by the India-Eurasia plate collision is discussed.The geodynamics driving characteristics of the India-Eurasia plate collision and action forces in vertical direction, which include geopotential of Tibetan Plateau landform and buoyancy of heat convection in its upper mantle, are presented.The intensity ratio of driving force to China continental lithosphere from India plate, Pacific plate and Philippines plate is about 4:1.25:1. The driving force of continental collision forms high horizontal compression stress in hard layers and the vertical force forms high horizontal compression stress in weak layers.The vertical force blocks the crustal movement to the north in the south part of Tibetan Plateau, and enhances mass extrusion in the north-east part of Plateau.