Destroy of concrete under loads was thought as a result of outside force in traditional views,while the author looked on it as a self-organization of components of concrete.This paper demonstrates the self-organized characteristic of the evolvement of concrete damage,then constructs the dynamic equations ofthe system think of the action of thermodynamic parameter such as temperature,freedom energy and entropy etc.in the evolvement of concrete damage,at last,looks on the damage course of concrete as imbalance changes in the view of synergetics,discusses the method of finding out the elastic terminal of concrete through analysis of stability,offers academic gist for improving concrete mechanic performance and the study of high performance concrete and have certain academic value and practice meaning.