Objective To explore the effect of situational exercise training on motor function of children with motor retardation,so as to analyze its influence on motor function development,in order to provide scientific basis for clinicl application.Methods Totally 95 children with motor retardation were enrolled in this study from February 2018 to January 2019 and were divided into experimental group (n=48) and control group (n=47).The control group received early comprehensive intervention such as low frequency pulse electric stimulation,exercise therapy and somatosensory therapy,while the experimental group was given situational exercise training additionally.The physique,intelligence,motor ability and balance ability of the two groups were compared before treatment,2 months after treatment and 4 months after treatment,thus the clinical therapeutic effect was evaluated.Results The total effective rate of the experimental group was significantly higher than that of the control group (54.17% vs.31.91%,Z=2.212,P<0.05).After 2 or 4 months of treatment,the scores of gross motor quotient (GMQ),fine motor quotients (FMQ),mental development index (MDI),psychomotor developmental index (PDI),Berg Balance Scale (BBS) and development quotient (DQ) in experimental group were significantly higher than those in control group(P<0.05).Repeated measurement analysis of variance showed that the main effect of intervention and time on GMQ,FMQ,MDI,PDI,BBS and DQ was statistically significant (P<0.05),and there was interaction between the effect of intervention and time on these indicators (P<0.05).There was significant difference on the therapeutic efficacy among children with different degrees of motor retardation (H=7.433,P<0.05).The lighter the degree,the better the therapeutic efficacy.Conclusion Situational sports training can promote the gross and fine motor function,balance ability and intelligence level of children with motor retardation,which is worthy of clinical promotion.