As one of the annual research surveys in the Korean Institute of Public Administration (KIPA), this project attempts to analyze the level of corruption in the Korean public sector via a survey of corporate workers and independent businessmen in the private sector. The main goal of this project is to systematically collect data on the level of perception of public corruption and to understand the extent of unethical practices happening in the public sector. With such data analyses, this study also aims to derive some key factors influencing public corruption and consider policy directions for effective anti-corruption governance in Korea. The result of this project shows that there is a considerable negative perspective on public corruption in Korean society, in spite of a relatively low rate of individual experience of public corruption. Such a strong negative perception and image of public corruption might be due to the role of the mass media, via reporting some massive bribery incidents involving public officials. To prevent public corruption and make a more effective anti-corruption policy, some legal, institutional, and administrative actions and measures should be carefully designed and implemented.