Background: The hospital accreditation program in Korea has been conducted since 2011 in order to improve patient safety and healthcare service quality. This study was conducted to find factors associated with satisfaction as surveyor and reliability of surveyors in hospital accreditation program. Methods: This study was performed targeting 217 responded to the survey among 412 surveyors who had participated in the accreditation survey for acute care hospitals from December 2010 to February 2014. Results: The average number of survey per surveyor is 2.35. We divided surveyors into those who participated in the survey more than 3 times and less than 3 times in order to judge the professionalism of surveyors according to the number of survey participation. Those factors that have an influence on the satisfaction as surveyors include: activity period as surveyor, role in the survey team, experience of survey in other fields, experience as consultant and the useful education and proper composition of survey team (pqqqlt;0.05). Those factors that have an influence on the reliability for fellow surveyors include: number of beds of hospitals they belong, experience of survey in other fields, useful education, proper composition of survey team and difficulty in leadership interview (pqqqlt;0.05). Conclusion: It is important to provide useful education and proper composition of survey team to increase the satisfaction as surveyors and the reliability for fellow surveyors.