本研究旨在探討高中職學生對書籍的購買動機及學業成就的差異性,進而探討購買動機與學業成就的關聯性。以雲嘉地區公私立學校之高中職學生為受試對象,並採便利抽樣方法,共發放420份問卷,回收有效問卷390份,有效量表回收率為93%。並以t考驗、單因子變異數分析、典型相關等統計方法進行驗證分析,本研究結果如下所述:一、 不同人口統計變項的學生,在不同學校、不同學校屬性、不同年級、不同購買數量及不同家長教育程度的購買動機有差異存在。二、 不同人口統計變項的學生,在不同性別、不同學校屬性、不同年級、不同購買數量、不同家長職業及不同家長教育程度的學業成就有差異存在。三、 高中職學生對書本的購買動機與學業成就有關聯性存在。 The study aims to discuss the purchase motivation of books and academic achievement of students from different senior high schools and then to discuss the relation between their purchase motivation and academic achievement. Senior high school students in Yunlin and Chaiyi area are taken as subjects and Convenience Sampling is adopted. 420 questionnaires are distributed and 390 valid ones returned. The response rate of valid assessment is 93 percent. Also, the methods of T-test, One-way ANOVA, Canonical Correlation are adopted for verification and analysis. Below is the result.1. The variations of purchase motivation exist in students from different schools, at different ages; the variations also include numbers of books students purchased, and their parents' education backgrounds.2. The variations of academic achievement exist in students from different genders, different schools, and different graders, and they also involves the numbers of books students purchased, their parents' occupations, and their parents' education backgrounds.3. The relation exists between senior high school students' purchase motivation of books and their academic achievement.