The fundamental axis in the understanding and application of the principles of child neuropsychology. Play goes beyond its traditional role as a simple means of entertainment or recreation, becoming an accurate tool for diagnosing the mental functions of a child. Through play activities that are natural and stimulating, neuropsychologists can explore a wide range of higher mental functions – speech, memory, attention, and executive functions – less formally and more intimately, approaching the child’s real world. This safe and friendly environment created by play allows the child to spontaneously express his or her potential, giving the psychologist the opportunity to identify strengths that can be developed and weaknesses that require intervention. At the same time, the role of play is not limited to diagnostics; It is also an effective therapeutic tool, as a variety of activities provide opportunities to improve functional compensation by activating alternative neural pathways and teaching the child self-learning strategies that promote independence and self-confidence. The integration of play into the therapeutic process makes the intervention more interesting for the child and more effective in terms of results, as it links fun with learning, turning sessions into valuable experiences that contribute to the formation of neuroplasticity and the development of the child’s holistic abilities.