本研究鎖定的抽樣對象為曾經參與過研發專案的團隊成員,以問卷的方式發放,採取便利抽樣,收取有效樣本151份,並使用敘述性統計、建構效度分析、信度分析、相關性分析、層級迴歸分析、集群分析與二因子變異數分析,結果分析如下: 一、 專案經理的領導能力與團隊承諾具顯著相關性。 二、 團隊承諾與專案績效具顯著相關性。 三、 專案經理的領導能力與專案績效具顯著相關性 四、 團隊承諾對專案經理的領導能力與專案績效之關係具有中 介效果。 五、 專案類型對於專案經理的領導能力與專案績效之關係具有 干擾效果。 This study aims to examine whether the impact of project manager’s leadership competency on project performance was moderated by project type. Additionally, this study also determines whether the effect of leadership competency on project performance may be mediated by team commitment. The third objective was to investigate the relationships among the project manager’s leadership competency, team commitment, and project success. To address the primary aims, a questionnaire-based survey was used to measure the project manager’s competency, team commitment, and overall performance of research and development (R&D) projects in the Taiwanese high-tech industry. The analyses suggest that increases in levels of project manager’s leadership competency may enhance commitment among team members. The results also indicate that team commitment exhibits statistically significant influence on project performance. Additionally, the findings suggest that project type has a moderating effect on the relationship between project manager’s leadership competency and project success. Finally, the results indicate that team commitment may serve as mediators between project manager’s leadership competency and project performance.