In this study, to know the influence of pro-social behavior by service orientation of care facility for the elderly, made a research from 80 care facility for the elderly of about 400 professor employees with visiting them and by the mail. survey was from 302 senior citizens by 61 facilities, and the final analysis was helped by 297 professor employees. First, as analysis from the standard of prime variable, it showed 3.84 of relatively high marked from the who have had aware of the level of pro-social behavior. overall, standard of service orientation shown 3.69 out of 5 which is also relatively high. Looking at the sub- dimensions of service-oriented leadership performance has shown 4.13 points out of 5, 3.78 points out of 5 on buildup the systems, management of human resource orientation shown 3.5 points out of 5 and attitude of services shown 3.36 points out of 5. In general, the service has showed up higher points on the overall. Second, by the analysis from the regression analysis, fulfillment of leadership (B=.004, P=.938), attitude of service (B=.031, P=.476), management of human resource (B=.147, P=.003), system build up (B=.175, P=.001) were made meaningfully influenced on pro-social behavior. Especially, the sub- dimensions of human resource management and the system buildup had a importantly major role for influencing on pro-social behavior. Based on this, in this study, care facility for the elderly professionals the ability to manage human resources programs and services to improve the efficiency of the system was proposed for building plans.