Abstract: From experiment angle, this paper discusses the influence of action mode of Indian ocean plate hounary force on Eurasia stress field, The results show that the northward push of Indian oeean plate zone is an immediate reason which causes strong shock triangular distribution in the west part of China and its adjacent zone, that the Indian ocean Plate zone deflects from north to northeast with the action mode of boundary force and that the zone of relative concentration of stress in the continent also deflects towards east with the action mode of bounadry force.