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Construction project with irreversible characteristics, it is envisaged from the project investment, design, financing, until the completion of an important part of the process operations, the effect of construction projects directly affect the future benefits of good or bad. Therefore, in order to successfully achieve the project objectives, project construction process monitoring is essential. Objectives in project management systems, quality, schedule, cost is an important goal. This will cost and quality objectives as a prerequisite of progress goals, cost-to jointly monitor the progress of the Performance Evaluation of Earned Value for the study, in the project cost-to jointly monitor the progress of the theoretical methods and implementation techniques of a comprehensive reading and literature study.In this paper, theoretical review, the use of layers, and decomposition methods, from project to project management and then to the final element of project management to the project cost-performance evaluation of the progress of earned value analysis. Then the traditional earned value analysis model in theory and practice of project management problems, put forward two of the Earned Value concept to break down the cost-performance evaluation of the progress of the implementation of the content, combined with network planning, project accurately reflects the internal the logic of the workplace; in monitoring the project as a whole, the internal working of the implementation of the project data based on cost and schedule forecasting in the subproject based on the development trend of the entire project be revised forecast, monitored by two project information for the modern project control theory provides a new way of thinking.