Abstract: Yunnan Province was close to India, Burma, Tibet and Vietnam, and was regarded as an important gate which China linked Indian Ocean and south eastern Asia. The special strategic situation witnessed that Yunnan Province was bordering region being full of geopolitical elasticity and tensile force. Four parts including central government, local government, imperialism and Chinese communist party participated geopolitical competition in Yunnan in 19451950.The differences of geopolitical targets decided that the geopolitical formation and structure of Yunnan province had complicated outlook being filled with antagonism and cooperation, containment and contact, competition and compromise.