It is necessary to access managing human resources of hospitals with diversity in order to operate hospital organization successfully and efficiently. The research tries to analyze affecting factors of organizational effectiveness of hospital workers according to their positions. The research has been performed on the 836 hospital workers of 8 different positions in the Busan & Gyeong-nam area, utilizing SPSS version 19.0 for processing and analyzing the data. The major results of the research are as following. First, among such factors of organizational effectiveness as sense of belonging to work, pride, work settlement, wage satisfaction, job satisfaction, colleague perception, and unstable consciousness of their job, there is a meaningful difference according to the kinds of working institution and positions. Second, there was higher organizational effectiveness(a sense of belonging and pride) as to higher work settlement and wage satisfaction within all kinds of positions. In addition, there was higher organizational effectiveness(a sense of belonging and pride) as to higher job satisfaction and colleague perception within all kinds of positions except for physical therapist, general adminstration, facilities, nutrition, and etc. There was higher organizational effectiveness(a sense of belonging and pride) within all kinds of positions except for general adminstration, facilities, nutrition, and etc, as to lower job or work complaint.