This study analyzed the data quality of "2020 National Public Sports Facilities Status" for public sports facilities gyms, which are the main facilities of the central government''s supply policy for sports facilities, and derived measures to improve public data management of sports facilities. First, most of the errors in public sports facilities gyms were errors in the data classification system of living and ball gyms. This is due to the fact that the classification standards of living and ball gyms are not clear. Therefore, the criteria for classification according to the gym specifications should be clearly presented. Second, it is urgent to establish a database through computerization. The SFMS of the Korea Sports Promotion Foundation can be used to ensure accuracy of the current status of facilities rather than existing data. In addition, the omission of the National Sports Center, which was caused by the management of the dualization of the gym data, will also be solved.