The aim of the research is to examine the primary school readiness levels of students based on their preschool educational background and some demographic variables. The relational survey model was used in the research. In the design of the study, the dependent variable is the school readiness level of the students, and the independent variable is the students' pre-school education process, gender, starting age, school attendance, parents' educational status, and socio-economic level. The study group of the research consists of 76 students of pre-school education age at Şehit Emre Tunca Primary School located in Çubuk District of Ankara Province. In order to collect data in the study, Cognitive Skills Test Form 6 was used. The scale was used to determine the level of readiness for primary school by measuring the verbal, numerical and non-verbal reasoning abilities of preschool students. The research data were analyzed by using descriptive statistics, the Mann-Whitney U Test and the Kruskal Wallis Test. Based on the findings obtained in the research; it was concluded that the readiness levels of the students who received pre-school education were higher than those who did not. Among the students; While there was a statistically significant difference in terms of school starting age, school attendance, and mother's educational background, it was concluded that there was no significant difference in terms of socio-economic level, gender, and father's educational background variables.