Abstract: The purpose of this study was to invest the effect of communal exercise with ‘Parkinson home exercise’ application on gait ability. Twenty nine subjects were randomly divided into three groups, CSG (Communal Exercise with Smart App. Group), ISG (Individual Communal Exercise with Smart App. Group) and CG (Control Group). The subjects were instructed to carry out 10 weeks exercise program. Values were measured before and after the exercise program and the differences were analyzed by two-way repeated measures ANOVA and Scheffe post-hoc test (p <0.05). In the present result, ambulation time and single leg support (%) were significantly increased among groups, CSG was the most significant among groups (p<0.001). Double leg support (%) and distance time were significantly difference among time (p<0.001). These findings indicate that communal exercise with Smart App. Can be effective in gait abilityfor PD patients.