Objective To study the impact of intelligent sports training system and comprehensive rehabilitation training on spastic cerebral palsy. Methods Sixty spastic cerebral palsy children treated from August 2018 to March 2022 were selected and according to random number table method, divided into a research group (n=30, intelligent sports training system and comprehensive rehabilitation training) and a control group (n=30, comprehensive rehabilitation training). The total effective rate and the before and after Ashworth Scale scores, ankle joint range of motion (ROM), Gross Motor Function Measure (GMFM) scores, 1 min walk distance and 10 m walking time were compared. Results The total effective rate in the research group (90.00%) was higher than that in the control group (63.33%) (P<0.05). Before training, the Ashworth Scale scores, ROM, and GMFM scores between the two groups were not significantly different (P>0.05); after training, the Ashworth Scale scores in the research group were lower than the scores in the control group, and the ROM and GMFM scores were higher (P<0.05). Before training, the 1 min walk distance and 10 m walking time between the two groups were not significantly different (P>0.05); after training, the 1 min walk distance in the research group was longer than that in the control group, and the 10 m walking time was shorter (P<0.05). Conclusion The intelligent sports training system and comprehensive rehabilitation training shows more effective results than comprehensive rehabilitation training alone, such as increasing children's athletic ability, promote ankle joint recovery, and reduce lower limb spasm degrees. It is worthy of promotion.