Now a day, Our society has a various political actors. It means that citizen get the spread of participation and improve legitimacy in the government policy-making process. But along with this, Actors who have a different aim can raise more conflict between actors and delay the policy decision. Therefore, Analyzing conflict aspect between actors can realize mature democracy and provide implication to the social- consensus in the policy-making process. In this research, Dealing with the case study about the Gyeyang Mt golf course development plan (GGDP) which has shown sharp conflict aspect. I want to know “why didnt reach any agreement between actors in the GGDP case?’, ‘How will the actors conflict aspect from different belief system be affect to the Government policy-making process?’ and ‘What kind of conditions need to make social consensus in the GGDP case?’. Commonly, environmental conflicts in the policy-making have two different belief systems such as environmental conservation and environmental development. Base on this two different belief system, various stakeholders united as a policy actor. Coalition actors from two different values enforce a different strategy to policy-making. Analyzing this case, I try to deduct some political implication about conflict management.