The traditional game of gobak sodor is a small game whose rules can be simplified according to the conditions of the players. Agility is very important for students with disabilities as it improves their physical abilities and social interactions. The purpose of this study was to determine the effect of traditional gobak sodor games on improving the agility of students with disabilities. This research adopts a quantitative with experimental methods. The experimental design applied in this research is PreExperimental Design with one group pretest-posttest model. The intervention was conducted 16 times within 2 months. The samples of this study were 20 students with intellectual disabilities from grades 4, 5, and 6 of State Special School (SLB). The measuring instrument used to collect data in this study is an agility test, which is measured by a 4 x 10 metre alternating running test (Shuttle run) for students with disabilities. The data obtained were statistically analysed using the t-test formula. Based on the calculation of the t-test that has been carried out, it is obtained that Tscore is worth 2.239173 and Ttable is worth 1.832937. So it can be concluded that there is an effect of "Gobak Sodor", a traditional Indonesian game to improve the agility of children with disabilities State Special School (SLB) of Wiradesa, Pekalongan Regency. Based on the results of the study between the pretest and posttest, there was an increase in the agility test results of students with disabilities at the State Special School (SLB) of Wiradesa.