There is a wide variety of assessments of Li Yu(李漁), some say he is a blatant commercial writer who writes only the best selling works, and is rarely treated as a writer. But, theatricalism, a part of 『Xian qing ou ji(闲情偶寄)』 is highly rated for establishing systematic critical theory suitable for real condition of play. Moreover, in addition to field of play, 『Xian qing ou ji』 covered architecture, gardening, object, flower and tree, everyday life in multilateral perspective, and, in this book, his point of view shines, which pursuits both practical use and aesthetics. Surely Li Yu is a good writer, through him we can look into late ming dynasty to early qing dynasty in detail. I found that both home and abroad, he only has been studied as a dramatist and a popular novel writer mainly, therefore, I would like to expand scope of this research to his poetic world. The essay lists the 68 pieces of writing of Li Yu‘s poem. It’s a fraction of the total number of works, but it contains a number of long poem. Many of the poem depict his extremely realistic predicament that usually has been understood as popular custom or bizarre, and it is not only helpful to recognize his inner self. Through this, conversely, we can trace the meaning of a revolution of era in the late ming dynasty and early qing dynasty to an individual. In this paper, I looked through Li Yu‘s poem in four parts, the changes in the world, social intercourse, reflection on life, and document of the details of daily life.