1919 " 54 Movement", Marx began to spread in Yunnan, in November 7, 1926, after the hard work of Communist Party members, such as Li Xin, Yunnan special branch of the CPC was founded in Kunming. Due to the brutal suppression of the Kuomintang, Li Xin, Wang Desan, Liu Pingkai and so on have been sacrificed, the party organizations have been seriously damaged. In 1929, Chiang Kai Shek appointed Longyun as chairman of the Yunnan provincial government, the national revolutionary army of the Thirteenth Army General Command, headed by Longyun Yunnan local strength faction rule established in Yunnan. In 1938, a Pyrrhic Burma Road through, become China and exit External connection only traffic line. In 1942 more than 10 million Chinese expeditionary force in Myanmar from Yunnan to enter the battle with the British and the Japanese, the Japanese army defeated the British along the Burma Road to Huitong bridge, across the river and Chinese military confrontation 2 years. From 1938 to 1946, Tsinghua University, Peking University, Nankai University in Kunming joint school, known as the National Southwest Associated University, which is the predecessor of the normal college of Yunnan Normal University.