交通先行是国民经济发展的基本前提和条件，铁路是国民经济发展的大动脉，从全国来看，云南的交通比较落后，现在铁路运输能力已经成为影响全省经济发展的重要因素。为了适应云南经济发展需要，提前做好滇越铁路国 Transportation is the basic premise and condition for the development of the national economy. The railway is the main artery of the national economic development. From a national point of view, the traffic in Yunnan is relatively backward. Nowadays the railway transportation capacity has become an important factor affecting the economic development in the province. In order to meet the needs of economic development in Yunnan, Yunnan and Vietnam in advance to do the railway