在２１３５Ｇ柴油机上，采用多孔喷油器的传统燃烧方式，分别对不同配比的甲醇柴油机械混合燃料进行了性能试验，取得了良好的经济性、动力性和排烟特性。分析了掺烧甲醇后柴油机的燃烧规律及影响燃烧过程和发动机性能的主要因素。 On the 2135G diesel engine, the traditional combustion method of porous injector was used to test the performance of different proportions of methanol-diesel mechanical mixed fuel, and achieved good economy, power and smoke exhaust characteristics. The combustion rules of diesel engine mixed with methanol and the main factors affecting the combustion process and engine performance were analyzed.