Down syndrome (DS) is one of the most common congenital disorders. Individuals with Down syndrome present with several impairments such as hypotonia, ligament laxity, decreased muscle strength, insufficient muscular co-contraction, inadequate postural control, and disturbed proprioception. These factors are responsible for the developmental challenges faced by children with Down syndrome. These individuals also present with balance dysfunctions. Neuromuscular and musculoskeletal impairments due to the chromosomal abnormality lead to developmental delay. These children also exhibit poor balance with greater instability and inefficient compensatory mechanisms including altered center of pressure displacement and trunk stiffening that predisposes them to falls. The aim of this study is to determine the Effects of Suspension Therapy (ST) on mobility and balance of children with Down syndrome. Suspension Therapy using Universal exercise Unit (UEU) is a three dimensional (3D) cage, consists of system of pulleys, suspensions, belts for supporting and elastic cords. Suspension Therapy is based on the concept of unloading the body against gravity and to perform movement of weak part of body.