Abstract Background: Cerebral palsy (CP) is a childhood condition in which there is a motor disability (palsy) caused by a static, non-progressive lesion in the brain (cerebral). Spastic diplegia is a common subtype of CP where the four limbs of the body are affected with more affection in both lower limbs. So, gait problems are oftenpresentat thiscondition. Aim of Study: The purpose of the current study was to in-vestigate the combined effect of quad spring board walkway integrated into platform swing on gait pattern in children with spastic diplegia. Material and Methods: Thirty children with diplegic Cer-ebral Palsy of both genders, aged from 4 to 7 years with spas-ticity ranged from mild up to moderate (1 or 2) according to Modified Ashworth Scale and they were at level I or II on Gross Motor Function Classification System participated in the study. They were randomly assigned into two equal groups; group (A) received traditional physical therapy program, and group (B) receive the same traditional program in addition to gait training onquad spring board walkway integrated into dynamic platform swing walkway. All subjects were assessed before and after the study using GMFM-88 (standing and walking, running, and jumping dimensions). Results: There was significant increase in all mean vari-ables of GMFM-88 and in favor for the study group (p>0.05). Conclusion: Quad spring board walkway combined with platform swing have a significant effect on gait pattern in chil-dren with spastic diplegia due to implementation of vestibular stimulation and unstable surface training and further research is recommended to investigate study effect on other types of cerebral palsy.