What is intended herein is to determine the problems being encountered at the application schools of preschool education. While this is a descriptive study in the form of assessment, qualitative research technique is applied herein. Workgroup is composed of 80 teacher candidates, having attended to the preschool education included within the branch teaching program of Gazi University in the education term of 2011 - 2012. Semi-structured interview form is utilized in order to determine what sorts of problems are being encountered by the teacher candidates at the institutions where they perform application. Data have been collected from the volunteer teacher candidates by way of face-to-face meeting. Findings, having been obtained from the research, have been assessed by way of descriptive analysis, and been assigned with frequency values. According to the result of the research, the problems being encountered the most by the teacher candidates in their school applications include inadequacy of tools, instruments, and corners, lack of any comment, correction, or orientation being performed by the class teachers in relation with the plans, teacher candidates' partial difficulty in preparing their plans.