Objective To observe the effects of 3D proprioceptive insole on balance and plantar pressure in elderly pa-tients with foot drop and varus after stroke.Methods A total of 60 elderly patients with stable condition of foot drop and varus after stroke treated in Department of Neurological Rehabilitation,Fourth Rehabilitation Hospital of Shanghai City from June 2021 to October 2023 were selected.They were randomly divided into 3D proprioceptive insole group(insole group)and ankle orthosis group(AFO group)by computer randomization method,with 30 cases in each group.On the basis of conven-tional rehabilitation treatment,the insole group received 3D proprioceptive insole treatment and the AFO group received AFO treatment.Both groups were treated continuously for 6 weeks.Berg Balance Scale(BBS),Fugl-Meyer Assessment(FMA),Gait Analysis and Footscan Plantar Pressure System were used to evaluate the two groups of patients.The differences in the evaluation values of the two groups before treatment and after 6 weeks of treatment were compared.Results Before treatment,there was no significant difference in step length,step speed,step frequency,BBS score and FMA score between the two groups(P>0.05).After 6 weeks of treatment,the step length and step frequency of the two groups were longer/higher than those of the same group before treatment(P<0.05),but there was no significant difference between the two groups(P>0.05);the step speed,BBS score and FMA score of the two groups were faster/higher than those of the same group before treatment(P<0.05),and the insole group were faster/higher than the AFO group(P<0.05).Before treatment,there was no significant difference in the medial and lateral plantar pressure of the affected foot and the medial and lateral plantar contact area between the two groups(P>0.05).After 6 weeks of treatment,the lateral plantar pressure and lateral contact area of the affected side in both groups decreased compared to before treatment in the same group(P<0.05),but there was no statistical-ly significant difference between the two groups(P>0.05);the medial plantar pressure and medial plantar contact area of the affected side in both groups increased compared to before treatment in the same group(P<0.05),and the insole group were higher than the AFO group(P<0.05).Conclusion Compared with AFO,3D proprioceptive insoles can improve balance function and plantar pressure more effectively in elderly patients with foot drop and varus after stroke.