Abstract: In order to adapt to the requirements of the construction industry information reform and improve the project yield rate, BIM Technologies are applied to the application of responsibility cost management in the second phase of China Railway Construction-Yanghuyuan Project. This paper gives a comprehensive overview of the second phase of Yanghuyuan Project and the concept of responsibility cost management, which is focusing on the analysis of the current situation of cost management, such as the untimely statistics of output value, the untimely statistics of responsibility budget and the difficulties of cost analysis. It has proposed an information-based solution based on BIM technologies to quickly understand the profit and loss of the project, therefore it improves work efficiencies and shorten work time. Finally, the effect and development trend of BIM responsibility cost management have been concluded.