本研究以一位資深兒童美語老師為研究的對象，運用質性研究之訪談法，進行實徵資料的蒐集與分析，探討資深兒童美語老師教學生涯發展的歷程。首先對參與研究者進行訪談，進一步將訪談後的逐字稿做開放性編碼，以確立屬性和面向，經由選擇兒童美語教學及教學經驗之歷程兩大主軸來呈現研究結果，分析參與研究者的教學心路歷程，再透過歷程編碼與選擇性編碼，將資深兒童美語老師的教學生涯發展歷程分為生涯未定階段、生涯決定階段、生涯適應階段、生涯突破階段、生涯定位階段，本研究的主要目的在了解兒童美語老師教學生涯發展的歷程，作為兒童美語老師規劃其教學的參照及師資培訓機構省思之相關依據。

This research was to investigate the development process of a senior English teacher based on grounded theory. It interviewed participant in detail, and got transcript which was processed by open coding, to indentify the properties and dimensions. Then the data result can be analyzed by two axiala. They were study period and teaching period, in order to understand the internal shifts of the participant. Furthermore, by means of process coding and optional coding, the career process was divided into career uncertain period、career decision period、career adaption period、career abruption period、career change period and career position period. The purpose of this reseach was to understand the development process of a senior English teacher. The result of this research can be the reference of the career plan of English teachers, and the successful sample of teacher's training.