The collection development policy of the library is, as S.R. Ranganathan said, "a growing organism." In this article, the collection development of library is a life circle alike. Based on this, the author describes the collection development of Chung-Lung Branch, Taipei Municipal Library by history. The comics has become the special collection of Chung-Lung Branch, Taipei Municipal Library since 1996. It has been developed before the opening day of this library on the July/24, 1998. For more efficiency of using, the Collection Development Policy of Taipei Municipal Library was written on 1996. Besides, though the survey, the author attempts to explore 206 sampling users' attitudes toward the collection of Chung-Lung Branch. That will be helpful to modify the long-term comics development policy of Chung-Lung Branch Library.