The ophiolite in Yarlung Zangbo Suture Zone displays different forms with different areas in southern Tibet. With the research on tectonic characteristics and the composite feature of ophiolite in the middle Suture Zone which shows that the northern edge of Indian plate the continental crust had an overall bending wavy (for things on both sides of the peaks protruding shape, the middle of the trough to the south concave shape), Special boundary conditions that lead to the Neo-Tethys Ocean first closed and collision in the both protruding node in the process of subduction-collision, but since the two nodes begin orogeny, collision orogeny by the middle of things on both sides to move gradually, and growing at both ends. In the Indian plate two protruding between the oceanic crust as orogeny did not dive into the Eurasian continent, the ultimate in Ngamring - cloth-formed around a residual basin, in the latter part of the fold orogenic process, the whole crust Uplift, residual basin disappeared, The remnants of oceanic crust due to thrust into the exposed surface in today's middle section of the Yarlung Zangbo suture zone ophiolite.