「70：20：10學習模式」經常是許多組織擬訂在職員工學習政策時的指導原則。隨著職場學習典範興起和數位學習管道開拓，公務人員愈來愈被期望透過自我調控學習增進本職學能，但根據Bandura的自我效能理論，在此之前須先瞭解公務人員成就動機影響自我調控學習的程度，以及成就動機經由自我效能影響自我調控學習程度各為何。緣此，本研究目的在探究公務人員自我效能在成就動機與自我調控學習之間可能產生的中介效果。對象選取國內採統一管理（俗稱「一條鞭管理」）之A公務機關人員，透過調查研究法，以分層隨機抽樣方式，發放問卷243份，回收有效問卷234份，進而採階層迴歸分析自我效能在成就動機與自我調控學習之間的中介效果。研究結果發現，成就動機與自我調控學習之間有正相關；成就動機與自我效能之間有正相關；自我效能與自我調控學習之間有正相關；自我效能在成就動機與自我調控學習之間具有部分中介效果。因此，為促進員工自我調控學習，A公務機關和性質相近之公部門除重視提高員工成就動機之外，也需一併增強員工自我效能。

The 70:20:10 learning model often serves as guidelines when organizations formulate their employees’ learning policies. With the rise of workplace learning paradigm and the expansion of digital learning channels, more and more public servants are expected to conduct self-regulated learning (SRL) to enhance their own competencies. However, according to Bandura’s self-efficacy theory, what remains unclear is the mediating effect of public servant’s self-efficacy on the relationship between achievement motivation and SRL. This study set out to answer this question. Subjects of the study were chosen from employees of government institution A, which has many government-level branches in Taiwan and is featured as having unified administration system. 243 questionnaires were sent out to employees working at different levels of government institution A and 234 (or 96%) of valid questionnaires were obtained. Through statistical analyses including correlation analysis, regression analysis, and hierarchical regression analysis, the results of this study are as follows: (1) There is medium positive correlation between employees’ achievement motivation and SRL; (2) There is medium positive correlation between employees’ achievement motivation and self-efficacy; (3) There is medium positive correlation between employees’ self-efficacy and SRL; and (4) Self-efficacy has partial mediating effect on the relation between employees’ achievement motivation and SRL. This study concludes that in order to promote its employees’ SRL, government institution A, or any suchlike institutions, should enhance not only achievement motivation but also self-efficacy in its employees.