Dynamic management control method for cost of power transmission and transformation project

The invention relates to a dynamic management control method for the cost of a power transmission and transformation project. The method comprises the steps that monitoring index data obtained by a project cost monitoring subsystem is transmitted to a dynamic data collection system, and historical cost data of similar projects, historical settlement data of similar projects and material cost information are also transmitted to the dynamic data collection system; the dynamic data collection system makes interaction, of the collected data, with a cost object determination system via a database; the cost object determination system transmits the identified similar projects and cost objects to a cost deviation self-healing system, the change trend of the cost is predicted, whether the project has a self-healing capability in the construction period as well as the trend of the deviation degree of the cost object are determined; a cost deviation early-warning system realizes early warning against deviation of the c