The purpose of this study was to measure body mass index (BMI) and the level of health-related fitness (LHRF) of middle school students with intellectual disabilities in Riyadh, Saudi Arabia, collecting data researchers used running test (1600 meters), sitting for the top test, muscular strength test, muscular endurance test, muscular capability, interview. Methods. A descriptive surveys method was used; Sample was selected in the manner deliberate search of fifteen male participants were porously chosen from Ibn al-Bitar Middle School. Results and conclusion. BMI of middle school students with intellectual disabilities is (26.21) they are obese, the elements of health-related fitness of middle school disabled students are low.