The aim of the search is to: - Building a special fatigue index test for advanced parkour gymnasts. -Establishing standards and standards for testing the fatigue index of advanced parkour gymnasts. The descriptive approach was used by the survey method, and the research community consisted of advanced parkour gymnastics players in the city of Mosul, who numbered (65) players, and the research sample was (50) players, representing (77%) of the total research community. The researcher built the fatigue index test for parkour gymnastics by following the scientific procedures, and the statistical bag (Spss) was used, and the following conclusions were reached: The fatigue index test for advanced parkour gymnasts was built and proved its effectiveness. -Standards and standards have been set for the test that has been built. The researcher recommended: -Using the Special Fatigue Index test in evaluating the anaerobic ability, and the fatigue index for advanced parkour gymnasts. -Emphasis on researchers and trainers when measuring the specific fatigue index in parkour gymnastics on measuring the heart rate and the level of lactate in the blood. Keywords : fatigue index, parkour gymnastics, advanced students.