The phrase "Intellectual Disability" describes the degree of aspects of mind that particular youngster’s exhibit. It is the situation where the cognitive advancement of a youngster’s is hindered to the extent that it results in a major handicap in the ability to properly process, problem-solve, and adapt to information received from their environment. The definition, underlying causes, and conceptual understanding of children with intellectual impairments are covered in this overview study. Significant impairments in adaptive and intellectual performance behaviour-expressed as conceptual, social, and practical adaptive skills—are characteristics of intellectual disability. An IQ level under 70 and deficiencies in everyday activities or adaptive behaviour abilities (eating, dressing, communicating, and participating in group activities) are considered signs of an intellectual disability. Intellectually disabled individuals learn slowly and struggle with abstract ideas. The features of people with the intellectual disabilities are also discussed in this work in some detail.