Earthquakes have become a popular research area because they have recently caused numerous problems in many countries. Also, they significantly impact preschool children. Children in the preschool age group, which is a critical period, are at risk from earthquakes, as they are a vulnerable group. Specifically, investigating the effects of the earthquake on preschool children is crucial in solving the problems they experience and putting forward policy recommendations, but there is no review study specific to this age group in the literature. Therefore, this study aims to examine the effects of the earthquake on preschool children. The effects of the earthquake, which takes place in a wide range, on preschool children are gathered, especially in the fields of social, psychological, health, and education. Challenges experienced by parents, difficulties in meeting basic needs, complex psychological problems, and changes such as migration are some of the critical issues preschool children experience after earthquakes.