Chan Master Dahui Zonggao 大慧宗杲(1089-1163)was known for his advocation of the meditation method called “Kanhua Chan 看話禪”, which made him a very important figure in the history of Chan school. In addition to presenting the findings concerning Dahui’s writings by analyzing current scholarly sources, this article will discuss the issues on the extant editions and its structure through re-classification. Dahui’s extant works can be classified into four systems. The first system is the two-volume version of Danhui pujue chanshi yulu 大慧普覺禪師語錄, which includes the one-volume version of Zongmen wuku 宗門武庫 and the two-volume version of Chanzong zaduhai 禪宗雜毒海. The second system is the three-volume version of Zheng fayan cang 正法眼藏. The third system is the thirty-volume version of Danhui pujue chanshi yulu 大慧普覺禪師語錄. Besides four individual versions—Danhui pujue chanshi yulu 大慧普覺禪師 語錄, Danhui pujue chanshi pushuo 大慧普覺禪師普說, Danhui pujue chanshi fayu 大慧普覺禪師法語 and Danhui pujue chanshi shu 大慧普覺禪 師書—there is an one-volume version of Danhui pujue chanshi pushuo 大慧 普覺禪師普說 which was attached in the Song Dynasty edition of the Buddhist Canon. The fourth system is the four-volume version of Danhui pujue chanshi pushuo 大慧普覺禪師普說. These four systems totally include nine individual works.