隨著國內網際網路的普及，以及智慧型手機功能的推陳出新，智慧型手機已成為國人不可或缺的生活必需品。根據調查結果顯示，15 到19 歲年齡層之使用智慧型手機上網比率超過八成，尤以使用智慧型手機從事遊戲之表現特別突出。另一方面，青少年階段面臨「自我統合」之任務發展危機，更可能透過網路遊戲的使用來順利度過或逃避其發展危機。因此，本研究透過探討國中生生涯決策自我效能及人際關係之發展任務情形，並且藉由瞭解苗栗國中生使用智慧型手機遊戲行為之現況，及其背景變項之探討，進而深入分析與探討國中生人際關係之差異情形。透過研究結論與建議，希冀作為提供學術界、實務界之日後教育與輔導之參考。

With the growth of the Internet and features of smartphones, smartphones have become essential to people's life today. According to surveys, more than eighty percent of smartphones users aged between 15 and 19 and the main purpose of these users are doing mobile gaming. On the other hand, these teenagers are also facing ＂self-integration＂ in this period. They might need mobile games as a help to go through ＂self-integration＂. In this study, researcher will investigate whether mobile gaming could affect the development of interpersonal relationship in a junior high school of Miaoli. The background of, students and the interpersonal relationship will also be examined for the variety of these circumstances. The purpose of this study is to provide a counseling report and suggestion for parents and school teachers.