The purpose of this study was to investigate the process of an early public kindergarten teacher’s
life-long development and to determine the factors that had influences on it. The participant was a
retired public kindergarten principal who had served as teacher, superintendent, and vice-principal in
order. And she also had teaching experiences of more than 5 years at public elementary schools with
certificate. In-depth interviews were administered for data, which were analyzed with the methods of
contents analysis and taxonomic analysis. The results of this research were as follows. First, the
life-long development of an early public kindergarten teacher went through such periods in order as
‘beginning teacher’, ‘experienced teacher’, ‘superintendent’, ‘vice-principal’, ‘beginning principal’, and
‘experienced principal’. Each period was characterized by her duties, concerns, difficulties, and
challenges. Second, the factors that influenced on the process of an early public kindergarten teacher's
life-long development were divided into two categories, individual and organizational ones. Individual
factors included ‘commuting by bus’, ‘playing role of both teacher and head of family’, ‘educational
background and teaching experiences related to elementary education’, and ‘personal values’. And
organizational factors were composed of ‘working conditions’, ‘personnel management system’, and
‘bureaucratic rules and formalities’.