Intellectual disabillities are disabillities characterized with severe limitations in intelectual functioning and adaptive behaviour. Intellectual functioning is measured using an IQ test. Limitations in adaptive behavior can be determined by standardized tests.There are altogether 4 levels of intellectual disabillities: mild, moderate, severe, very severe. Physiotherapy as a therapeutic discipline can greatly help in resolving the physical and mental limitations that people with intellectual disabilities face on a daily basis. This graduate work is designed to examine the effect of a physiotherapeutic approach on the improvement of physical and mental functions in people with intellectual disabilities. The physiotherapy process of people with intellectual disabilities starts with a physiotherapy assessment that includes measurement tests to assess balance, muscle strength, and aerobic endurance. Furthermore, when it comes to the physiotherapeutic intervention of people with intellectual disabilities, only four types of therapy were considered in this graduate work: therapeutic exercises, hippotherapy, music therapy, and the Halliwick concept. All mentioned physiotherapy interventions were supported by evidence from various studies and positive results were obtained. Most research, however, included therapeutic exercises, because other three interventions are relatively new methods. Almost all research includes children and adolescents with intellectual disabilities. It can be stated that the physiotherapeutic approach plays a significant role in improving physical and mental functions in people with intellectual disabilities.