Early childhood education up to the age of seven is crucial for the development of sensory integration, since the brain establishes the most neural connections during this time. Problems with sensory processing are often first recognized during childhood when it is noticed that the child has certain difficulties with receiving information from the senses, which results in behavioral problems and his emotional and social development. Children with sensory processing difficulties also often have difficulties with self-regulation, which leads to social, emotional, behavioral and academic challenges. Self-regulation is the child's ability to organize behavior in accordance with the cognitive, emotional and social demands of a given situation. Underdeveloped self-regulation skills are associated with increased disruptive and/or aggressive behavior that can lead to difficulties in social relationships, including rejection by peers and difficulties in forming friendships. The occurrence of difficulties in sensory processing and self-regulation is not only in children with typical development but is frequent in comorbidity with other difficulties. Likewise, even children without sensory processing difficulties can sometimes have difficulties with sensory integration. This implies that strategies and interventions should be introduced at a younger age to ensure academic and social success. Preschool age children are included in an educational system in which the quality of the educational process depends on the methods and strategies that significantly contribute to the overall functioning of the children, including the improvement of the child's sensory processing and self-regulation skills. Continuous cooperation between educators, experts and parents enhances the support of the child's development, his active participation in everyday activities and primarily establishing quality and structured environment sensitive to the child's needs. However, the most important role in a child’s early childhood have parents, who encourage the development of sensory processing and self-regulation skills in various ways through play, conversation and being with the child. Detection and assessment of sensory processing and self-regulation difficulties requires observation in different settings, collaboration with experts and the use of individualized approach for each child.