Recently, major countries around the world are carrying out various policies centering on fostering Integrated Resort for the development of their casino industry. However, the domestic casino industry does not come along with the global trend of the casino industry and recognizes the casino industry as a representative gambling industry. Also, puts only a regulatory policy on the casino industry. As a result, the domestic casino industry is rather against the global trend and is being taken away from the competition. In this situation, we need to take a proactive and new approach to the casino industry in order to keep pace with the global trend in the casino industry and to move away from the existing legal systems and policies. In addition, it is necessary to improve and improve existing casino industry related laws and policies in order to establish fundamental and integrated casino industry related laws and policies. Thus, we have considered the improvement of the legal system for the development of domestic casino industry focusing on the legislative theory and system and policy improvement plan in this thesis.