2016 is the "13th Five-Year plan" is also the beginning of the year, DS company into the depth of the adjustment period and the transition of the key, with the ethylene project device technology upgrading and revamping to accelerate the pace of the related industries and industrial construction in this region and the northeast provinces have played a very important influence. In recent years, with the development of new large-scale petrochemical projects and the existing petrochemical enterprises, the enterprises are facing severe challenges and challenges in project management. As a successful case of large ethylene project, DS company has a very important research value. In this paper, combined with the progress of the project management theory and practice experience, through the study of domestic and foreign project management analysis, and put forward the problems in the progress of the project management and suggestions, hope to provide reference and reference value of ethylene project enterprises for the future. This paper is divided into six parts: introduction, theory expounded,basic overview of the project ,successful experiences of the project, problems and causes of the project, The second part of the paper, The related theory of project management is expounded. The third part, this paper briefly introduces the characteristics of engineering. first of all, introduced the DS ethylene project and its progress management status. According to the DS company ethylene project,understand the general situation of DS company ethylene project, and summarizes the characteristics of ethylene project in DS company engineering, introduces the general situation of the project schedule management of DS company ethylene. Secondly, it analyzesthe successful experience and problems of DS company ethylene project schedule management. Part four of this paper analyzes the successful experience of DS company ethylene project schedule management. And fifth part, find out the influencing factors and management problems of DS company ethylene project schedule management. Finally, the paper puts forward some suggestions for the improvement of DS company ethylene project schedule management. This paper introduces how to improve the schedule management by improving the design schedule control of ethylene project, the implementation of the project schedule management, and the adjustment of the progress, quality and investment. Key words: petrochemical enterprise;ethylene project;project schedule;progress control。