隨著科技的快速發展以及智慧型裝置與個人行動網路的普及，雖然行動裝置帶來了便利的生活，但也同樣的潛藏了資訊安全的風險，本研究以Boss, Galletta, Lowry, Moody and Polak (2015)提出的完整保護動機之模型為基礎架構，加入情境支持，言語的說服以及替代性經驗來探討影響使用行動資安防護APPs意圖之因素。本研究透過網路問卷來進行樣本資料收集，研究對象為有使用行動資安防護APP之經驗者，總共收到189份有效問卷，透過統計軟體SPSS 22.0與Smart PLS 3.2.6對樣本資料作數據分析驗證。結果表明，知覺威脅嚴重、知覺威脅弱點會正向影響恐懼，言語的說服、替代性經驗會正向影響自我效能，恐懼、反應效能、自我效能會正向影響使用意圖，而不採用酬賞、反應成本會負向影響使用意圖。 With the development of modern science and technology, smart devices and personal mobile networks have become increasingly popular due to the rapid growth of the Internet. Mobile phones have made life more convenient. Unfortunately, these devices are also beginning to face many security threats. Based on the model proposed by Boss, Galletta, Lowry, Moody and Polak in 2015, this study included situational support, verbal persuasion and vicarious experience to explore the factors that influence intention to use mobile security APPs. This study collects sample data from a web-based questionnaire. A total of 189 valid questionnaires were collected and data analysis by SPSS 22.0 and SmartPLS 3.2.6.The results showed that perceived threat severity and perceived threat vulnerability had positive impacts on fear. Verbal persuasion and vicarious experience had positive effects on self-efficacy. Fear, response efficacy and self-efficacy had positive effects on usage intention.Maladaptive rewards and response cost had negative impacts on usage intention.