The wide application and development of XBRL in the world has promoted the reform of accounting information in China.The implementation of the XBRL technology in the financial report has convenience for its users.But,there are some shortcomings in the theory and practice because of its short practice time,such as the lack of advanced theoretical support,XBRL classification standards is not perfect,the lack of XBRL related technology and professionals,etc.Therefore,this paper studies the application of XBRL in the enterprises in West Coast Economic Zone,analyzes the existing problems,and puts forward the corresponding suggestions for the application of the problems,and then discusses the necessity of consummating the construction of accounting information in the enterprises in West Coast Economic Zone.