As a fundamental industry, petroleum industry plays a very important role in the development of the national economy. Several major oil companies, the large and medium-sized state-owned enterprises, generate millions of daily business documents,and millions of workflow to initiate and approve. How to manage of these large enterprise content efficiently and safety has become an urgent issue. Introduction of the concept of enterprise content management is no doubt one of the most effective ways to solve this problem.FileNet is an important part of IBM enterprise content management solutions. It provides enterprise-class scalability and flexibility, and can be seamlessly integrated with content management and work flow management. It provides a leading global integrated environment for business documents and work flow management for customers. With analysis on the content management and work flow management, the characteristics and powerful functions of FileNet in this article, we elaborate how to achieve efficient management among massive business documents and work flow of petroleum enterprise through the FileNet enterprise content management solutions.