The paraments and evaluation system of earned value theory are proposed and their practical process of implement for cost control management in P3E/C software are analysed.

Earned value analysis is an integrated method for general measurement of project progress and cost status and an efficient project monitor and control index,basically it applies currency quantity or resource consumption quantity instead of engineering quantity to measure project progress.

On the basis of the theory of earned value,authors discuss and research the development of computer aided cost & schedule control system.

Application of earned value concept to the control of construction cost;

Application of Earned Value Concept in the Dynamic Control of Construction Cost;

As schedule and cost is managed synthetically in project,earned value concept played an important role in construction project management.

The authors have first recounted the current situation of the progress, quality and investment control method being used in the reservoir resettlement system in the country, suggested to apply the gain value method to the target.

The paper analyses the work process of earned value management, whose review index and evaluation means are probed into.

Based on the earned value concept, the thoughts for compiling simple program for comprehensive control of person hour/schedule of design were described, thus a simple method was provided for the computer control of the projects under the present condition.

This srticle makes an essential introduction to apply the general principle of cyberneties in project control, brief leads the method of applying the EVC(Earned Value Concept) to carry out the Project Cost/Schdule multiple control, and makes a comparision with the traditional ways.