The purpose of this study is to describe the kindergarten teacher's problem solving ability through analyzing teaching cases including problems at kindergartens. In order to investigate this purpose, two research questions have been set up as follows: Is there any difference in the teacher's problem solving ability according to the teacher's experience? Is there any difference in the teacher's problem solving ability according to teacher's prior experience with the case? 40 kindergarten teachers who graduated from 4 years university participated in this study. Among them, 20 people are teachers who have less than 1 year of experience, and the other 20 teachers have more than 6 years experiences of teaching. After giving teaching cases at kindergartens, data was gathered by requesting them to give descriptive answers of analysis for the 7 questions included at each teaching case. The gathered data of teaching case were scored by the Holistic Scoring System developed by Levin(1993). The result of this study is as follows: problem solving abilities of teachers are different depending on the years of teaching experiences. That is to say, expert teachers are better than novices in terms of ability of understating the core of the problem situation, level for pursuing additional information, ability of understating from the various points of view, ability of understanding the issues of problem situations, ability of providing the clear causes for the problem situation issues, ability of providing the solutions for the general problems, ability of providing the solution in each teaching case classroom situation, etc. Problem solving abilities of teachers are differences depending on the level of prior experiences with the case. There is no difference between teachers who have many experiences and does not have it for the teaching case of 'guiding lunch meals'. However, expert teachers who have previous experiences have much better ability than novices in analyzing teaching case of 'individual differences of children'. And expert teachers who have previous experiences have little better ability than novices in analyzing the case of 'trouble between a teacher and parents who have a aggressive child'.