本研究將以就學於台灣地區大學主修日語之學生爲研究對象，探索他們的日語學習動機，與其學習成效（日本語能力檢定1級之成績）有何關聯。須在怎樣的動機驅引下才能有效的提升學習成效，在此將以實証分析來進行驗證。 首先，他們的學習動機爲「交流的意欲」「享受有能感」「意思傳達的工具」「流行文化以及對日本的好奇心」「對次文化感興趣」共五個，可以確知的是以內發性動機爲中心。這五個學習動機相互影響下形成了一個可變性的激發動機複合體，支撐著他們持續的學習日語，可以確定的是在這當中「對次文化感興趣」也左右著其成效。

The present research focuses on students majoring in Japanese language at Taiwanese universities; the aim of the research is to empirically verify the relationship between the motivations for students to study the Japanese language and the results of their study (i.e., scores in the Level 1 Japanese Language Proficiency Examination), and to determine which motivations are effective for raising academic results. Five main motivations for study were uncovered: ”desire to interact,” ”enjoying a feeling of competence,” ”use as a communication tool,” ”interest in pop culture and Japan,” and ”interest in a subculture.” These five motivations interact with each other to form one dynamic motivation that supports continued study of the Japanese language. From these motivations, it was clear that ”interest in a subculture” greatly affected the results of Japanese language study.