Abstract
Yu Guangzhong is an essayist with theoretical construction. He puts forward the creative concept of both intellectuality and sensibility. In literary creation, with the opposite and complementarity of intellectuality and sensibility it has a lively and vivid aesthetic expression. This thesis intends to analyze the relationship between his creation practice and theory from Yu Guangzhong’s masterpiece ''Family where the sun never set'', to explore the rational and emotional connotation of Yu Guangzhong’s prose, and to appreciate the rich humanity and life style of Yu Guangzhong, and the inner charm of his humorous attitude. From the full text of the discussion, it can be seen that Yu Guangzhong's creative personality in his later years is the most vivid manifestation in the book ''Family where the sun does not fall''. It has both the philosophical understanding of ''cultural intelligence'' and the life experience of ''human feelings''. Through daily life, thinking and deep observation of the soul, and through the exploration of art, it shows the emotion and rationality in prose. Deep and rigorous, no loss of humorous.