本研究欲探討工作保障與組織公民行為、敬業精神的關係,並觀察核心自我評價之調節作用。本研究透過發放線上問卷針對各產業的全職員工進行調查,共蒐集200份有效問卷。根據蒐集到的問卷進行描述性統計分析、信度分析、相關性分析與階層迴歸分析,驗證工作保障、組織公民行為、敬業精神之間的關係以及核心自我評價之調節作用。研究結果顯示(1)工作保障與組織公民行為有正向的關係;(2)工作保障與敬業精神有正向的關係;(3)核心自我評價會正向調節工作保障與組織公民行為兩者之間的關係;(4)核心自我評價會正向調節工作保障與敬業精神兩者之間的關係。基於上述研究結果,本研究提出相關管理意涵與未來研究之建議。;This study aims to investigate the relationships among job security, organizational citizenship behavior, and job engagement. Core self-evaluation is included as a moderating variable to better understand its moderating effect on the relationship between job security and organizational citizenship behavior, and the relationship between job security and job engagement. It is found that job security is positively related to organizational citizenship behavior and job engagement. In addition, core self-evaluation has a moderating effect on the relationship between job security and organizational citizenship behavior as well as the relationship between job security and job engagement. Based on the findings, managerial implications and recommendations for future research are thus discussed.