本文论述了在交通机电工程监理中 ,质量、进度、投资三者之间的辩证关系。监理工程师的主要工作就是以国家法规为准绳 ,以经济合同为依据 ,搞好质量、进度、投资三个控制 ,达到用较小的投资获得质量尽可能好的交通机电工程 ,优质高效为国家交通基础设施建设服务。 This article discusses the dialectical relationship among quality, schedule and investment in the supervision of traffic electromechanical engineering. The main work of the supervision engineer is to take the national laws and regulations as the criterion, based on the economic contract, improve the quality, progress and investment of the three controls, with a smaller investment to obtain the best possible quality of transportation, electrical and mechanical engineering, high quality and efficiency for the national transport Infrastructure construction services.