近年來,由於速食零售業的市場逐漸飽和,許多學者皆以零售服務人員的職能進行研究,但過去的研究則較缺乏同時探討教育訓練、核心職能、工作投入與工作績效間關係。本研究主要是由「核心職能」、「教育訓練」、「工作投入」、「工作績效」四個構面所組成,其中核心職能的問項是透過UCAN大專院校就業職能平台參考討論而來,而其他構面則是引用學者文獻。本研究以問卷調查方式,共蒐集有效問卷153份為樣本資料,以零售速食業服務人員為研究對象,分析方法使用SPSS探討各研究變數之間的關係,研究結果顯示:(1)公司對銷售人員的「教育訓練」會正向影響「核心職能」、(2)銷售人員的「核心職能」會正向影響「工作績效」、(3)銷售人員的「工作投入」會正向影響「工作績效」。 This study focuses on the impact of vocational training on core competence and the impact of core competence on performance. This article takes employees of fast food company as the research object in Taiwan. The relationship between the variables of each study was explored using questionnaires and SPSS analysis methods. 153 survey questionnaires were collected for analysis. The research results revealed that there is a positive impact on the training, core competence, work involvement and performance of fast food service personnel. And in the impact on performance, it is found that improving the competence of employees can increase the performance more than the job involvement of employees.