Privacy training; It is a phenomenon that covers not only the sexual development of children, but also cognitive, language, moral, social and emotional development areas. At the same time, it is a concept related to the individual's self-knowledge and setting limits in vital situations or interpersonal relationships. This work; This study was conducted to determine the effect of mothers' perceptions of privacy on their preschool children's privacy-related behaviors. The research was conducted with a two-stage relational survey model, qualitative and quantitative. Mothers with children aged 4-6 years studying in pre-school education institutions constituted the study group (N=239). Individual Information Form to determine the demographic variables of the study group; The Privacy Perception Scale was used to determine mothers' perceptions of privacy, and the Semi-Structured Interview Form was used to determine the effects of mothers' perceptions of privacy on their children's privacy-related behaviors. In the evaluation of qualitative data, data that were similar to each other were combined within the framework of certain themes and concepts by using content analysis. At the stage of evaluating the quantitative data, the MannWhitney-U test was used in the comparisons between two independent groups, and the KruskalWallisH test was used in the comparison of three or more independent groups in order to determine the difference and relationship status between the sub-dimensions of the Privacy Perception Scale and demographic variables. According to the results obtained; in the sub-dimension of individual privacy; significant difference was found between the variables of mother's education, mother's work and number of children. As mothers' perceptions of individual privacy increase, so does their perception of spatial privacy. In addition, as the perceptions of privacy regarding others increase; Digital privacy perceptions are also increasing