The purpose of this study is to analyze the writing activity materials presented in the thirteen middle school textbooks and determine if the writing activity materials are appropriate for the goals and contents of the 7th national curriculum. The writing activity materials are analyzed based on three criteria. First, the writing activity materials are analyzed based on Rivers'(1981) five writing guidances, which are specified with detailed writing activity materials. The first criterion was suggested by Young-Ran Lee(2004). Second, the writing activity materials in the textbooks are analyzed according to the criterion prescribed by the 7th national curriculum, which are specified with writing activities presented by Rivers(1981), Raimes(1983), Hedge(1988), and Beverly and Carol(1988). Third, the writing activity materials related to other skills, such as listening, speaking, and reading, in the textbooks are selected and analyzed according to the proportion of the integration of skills. The results are as follows: First, writing activity materials in the textbooks belong to the type of 'reproduction', ie. the second stage of Rivers' writing guidance, 'recombination, which is the third stage of Rivers' writing guidance, and the type of 'guided writing', noted on the fourth stage of the guidance. Second, the writing activity materials satisfy the criterion in the 7th national curriculum, as for the proportions, but they are not balanced. Third, most of the writing activity materials contain writing activities that involve non-writing skills such as listening, speaking and reading, but they are not balanced. Particularly, writing activity materials related to reading activities are common.