Life esthetic thought refers to what the esthetic life an individual presents when his life confronts substantial environment and cognizes life subjectivity that makes him fulfill the life concept of corresponding and harmonizing his life with the universe which manifesting the “unity between heaven and man”. The study would try to get a thorough knowledge of the subjectivity of life thought in “Chuang-Tzu” by way of theories of “life esthetics”, so as to expound the purpose of life esthetic thoughts in “Chuang-Tzu”. The whole thesis would be based on “the metaphysic ground of life esthetics in ‘Chuang-Tzu’”, “the cognition of life esthetics in “Chunag-Tzu” and “the fulfillment of life esthetics in ‘Chunag-Tzu’ ” to expound how would the main foundation of life harmony in “Chung-Tzu” generate bright lives when the universe comes into being. “Chuang Tzu” took the harm caused by the inordinate desire for life as a premise to suggest and recognize that the existence and death of life is only a natural phenomenon, and when esthetic experiences could be incarnated in ego mind and get beyond the limit of life and death to stand on a state without life and death, then could life esthetics present its connotations of purity, spirituality and liberty. Therefore, the so called “living freely and unboundedly with clear, bright and unlimited spirit” means to fulfill concretely the life of “perfect man”, “god-like appearance”, “sage” as well as “immortal”, and reach the pure esthetics of “unity between heaven and man” as well as the liberty of harmonious flowing in spirits, that’s just what the life esthetics of being contented to roam about at pleasure in nature and human world no matter what might come, and also the very connotation of the values of life esthetic thoughts in “Chuang-Tzu” which the author expounds.