The aim of this research is to reveal the evaluations of preschool teachers' about the problems experienced in the education process and the sources of the problems. The study was carried out based on the basic qualitative research design. The research participants consist of 19 preschool teachers working in public and private schools providing preschool education in Eskisehir city center. The primary data of the research were obtained through semi-structured interviews with teachers. In addition, the parent demographic information collection forms and the researcher diaries were used. Descriptive analysis and content analysis were used in the analysis of the data. According to the main findings obtained within the scope of the research, the most frequent and common problems experienced by students in the education process are related to attention and maintaining attention, and exhibiting behaviors in accordance with the rules in the classroom. In addition, the problems experienced are observed much more intensely in male students compared to female students. When teachers compare their students from past years with their current students, they are of the opinion that there is a significant increase in the problems experienced in the education process compared to years. Problems experienced in the preschool education process occur more frequently and are more common in public schools compared to private preschool education institutions. The most important sources of problems behind the troubles that arise in the education process; students' parents, common technology usage habits of students, quality of teachers, quality of educational environments, preschool education program, student characteristics and changing daily life habits of students.