Objective : This study aims to analyze the effects of psychological and environmental factors on the use of mobility assistive devices on life satisfaction for the physically disabled. Methods : The general characteristics of the physically disabled people were cross-analyzed with descriptive statistics, and an independent sample t-test was performed for comparison between groups according to whether or not the physically disabled people used mobility assistive devices. Pearson correlation analysis was conducted to analyze the correlation between life satisfaction and disability acceptance, depression, self-esteem, activity restriction, residential environment, and dependence on daily life of physically disabled people. Multiple regression analysis was performed to analyze the factors affecting the life satisfaction of physically disabled people using mobility assistive devices. In addition, the percentage of satisfaction with the mobility assistive devices currently in use is presented as a graph. Results : Significant differences were confirmed in psychological factors, environmental factors, and life satisfaction in the comparison of the two groups according to the use of mobility assistive devices. Life satisfaction of the physically disabled people was positively correlated with disability acceptance, self-esteem, and residential environment(p<.01), and negatively correlated with depression, activity restriction, and dependence on daily life(p<.01). Factors affecting the life satisfaction of the physically disabled people using mobility assistive devices were age(ß=-.122, p<.001), disability acceptance(ß=.263, p<.001), and depression(ß=-.288, p<.001), activity restriction(ß=-.181, p<.001), and residential environment(ß=.102, p<.01) were analyzed. Conclusions : In order to increase the life satisfaction of people with low physical function who use mobility assistive devices, policy support and assistive technology services for psychological and environmental factors should be provided.