本研究目的旨在了解國小教師運用行動即時通訊LINE進行親師溝通之現況，以及探究影響教師接受的正、負向影響因子與使用意圖及使用行為之關係。本研究以延伸整合性科技接受模式為理論基礎，並增加隱私風險與收發焦慮兩個變項。本研究以公立國小教師為研究對象，共發放450份問卷，回收437份，回收率97.1%，有效問卷430份，有效回收率95.6%。其結論如下：績效預期、社會影響與促成條件對行為意圖有正向顯著影響；隱私風險與收發焦慮對行為意圖有負向顯著影響。行為意圖與促成條件對使用行為有正向顯著影響。

The main purposes of this study are to realize the current condition of primary school teachers’ adopting mobile instant messenger (MIM), LINE, to carry on parent-teacher communication, and to explore the correlation among positive and negative influencing factors, behavioral intention and behavior of use for teachers' acceptance. Based on united theory of acceptance and use of technology 2 (UTAUT 2), perceived risk and anxiety of message receiving and sending were added in research framework. The subjects of this study were public primary school teachers. 450 questionnaires were distributed and 437 were retrieved, with return rate 97.1%, valid for 430 copies and valid return rate 95.6%. The findings of this study were summarized as follows. There is a significant positive effect of performance expectancy, social influence, and facilitating conditions on behavioral intention; there is a significant negative influence of perceived risk as well as anxiety of message receiving and sending on behavioral intention. There is a positive significant effect of behavioral intention and facilitating conditions on behavior of use.