The Writing Motivation Constructs of Academic High School StudentsPark, Young-minThis paper's aim is analysis the factors affecting writing motivation of academic high school students. There are 953 students out of 3 schools for this research, and the data of students' responses on questionnaire analyzed. The writing motivation constructs consists of following four：writing self- efficacy cooperative interaction, competitive rewards, writing interest. They have explanation capability of 59.777% to total variance of the motivation. Writing motivation has differences of gender and grade. The female students gain more scores than the male students. It means that the female students have positive writing motivation. Then 1st grade students gain more scores than others grades 2nd and 3rd. It means that the 1st grade students have more positive writing motivation than others grades. Writing interest has no significant differences among students grades. As high school students develop foreward, writing motivation goes down.