Method of network plan in project construction has been widely used, it complies with the requirements of the engineering construction management, organization and management is especially suitable for the construction of the project. At present our country network plan technology in engineering project theory and level with the foreign equivalent, but in the application of project management, especially the lag compared the supervision and control in implementing plan, tracking and adjustment, basically still stay on the preparation of the plan. This paper analyzes the present situation of the application of network technology in construction management, puts forward the ways and methods to improve the application of network planning technology.