Context and relevance. Parenting stress and burnout have a significant impact on the mental health of parents and children. In this regard, the factors and consequences of parenting stress and burnout are being actively studied. However, comprehensive studies of the effects of parenting stress and burnout, and parenting disorders on the formation of emotional and behavioral difficulties in children have not been conducted. Objective. The aim of the work is to identify the relationship between the variables of parenting stress, parental burnout, parenting style used by mothers of preschoolers, emotional and behavioral problems in their children. Hypotheses. 1. Parenting stress, parental burnout, characteristics of the parenting style of mothers and emotional and behavioral difficulties of preschoolers are closely interrelated: parenting stress and burnout affect the emotional and behavioral variables of the child directly and indirectly, through parenting style. 2. There are mutual influences between the violations existing in the process of upbringing of preschool mothers (redundancy of guardianship and control (prohibitions, requirements)) and the level of parenting stress and burnout. The sample of the study involved 76 mothers (26–47 years old, M = 36 years old) of preschoolers (4–7 years old, M = 5,3 years old) living in the city of St. Petersburg. Methods and materials. The scale of parenting stress (J.O. Berry, adaptation by Yu.V. Misiyuk), the questionnaire of the level of parental burnout (I.N. Efimova), the questionnaire of the analysis of family interaction (АСВ), (E.G. Eidemiller, V.V. Justickis), the questionnaire of emotional and behavioral difficulties (CBCL/4-18) (T. Achenbach) were used. Results. The style of maternal parenting, represented by the redundancy of requirements, prohibitions and sanctions, contributes to the appearance of parenting stress. Parenting stress provokes emotional exhaustion (burnout) of mothers, which can contribute to increased hypoprotection. The appearance of external problems of preschoolers is facilitated by the use of redundancy and/or insufficiency of requirements, prohibitions and sanctions by mothers. Whereas the internal problems of a preschooler appear as a result of the mother’s stay in a state of emotional exhaustion, provoked by the excess of demands placed on the child. Conclusions. The study showed that parenting stress, parental burnout, and maternal parenting style mutually affect each other, and the development of emotional and behavioral problems in preschoolers is both a consequence of parenting stress and burnout, as well as the result of the parenting style used by mothers.