Confucianism is an integration of universe,society and ethics.In practice,traditional Confucianism " Nei Sheng "——the inside harmony and " Wai Wang "——the outside conquest are contradictory and separate.And the idea to develop the outside world by means of the inner world involves basic presumption of congenital essence and perfection of " Nei Sheng Xin Xing Xue ",so it is necessary to transform passive defense into active response under the impact of the western culture.However,the Confucianism " Xin Xing Xue ",the theory that man is an in tegral part of nature(Tian Ren He Yi),centers around the problem " human nature and the universe ",and pursues the perfect moral value andthe ideal field of integration of man and nature,and also shows the strong value tendency of moral idealism.So its modern significance lies in reflecting and criticizing all kinds of possible defects and trends appearing under the impact of modern society from the perspective of humanity value.So the reconstruction and deconstruction from three levels are necessary prerequisites for Confucianism to promote modernization development.