Abstract. With the development of embedded technology, the application of embedded products is dazzling. Whether the system project can guarantee the completion of quality has become a problem to be solved at present. Due to the uncertainty and uniqueness of the embedded development process, how to assess the requirement risk of this project has become a difficult problem. In the development cycle, the time for finding the problem is directly proportional to the cost of repairing the problem. The earlier the problem is discovered, the lower the cost of repair, and the requirement is just the initial stage of project implementation. This article mainly introduces the characteristics of embedded development and the causes of the requirement risk. According to the requirement risk of the embedded project in the development environment, it leads to the delay of the project, and constructs the index system principle of the requirement risk for the embedded project.