Policy legitimation is a process of bargaining, competition, persuasion, and compromise among interest groups and government officials. The policy network is defined as the government agencies and interest groups whose interests are directly related to the policies. The network comprises the relationships that result from interest exchanges and interactions between members pursuing beneficial policy objectives. Therefore, analysis applying policy network theory will enable us to understand the complicated relationships between government agencies and interest groups regarding national policymaking. This research describes policy stakeholder opinions and their influence on policy outputs during the Labor Pension Act legitimation process by combining policy network theory and environmental context. The results show that the diversified groups formulated an issue network to integrate their common views with those of the economic development consultative council, and that the administrative department’s control of the draft process developed a model of community policy. The legislative department and administrative department developed a community policy regarding system issues in the legislative process. There was no interference from employer groups, however, the activities of labor groups made working on the policy output futile. Regarding firm tenure and worker pension issues in the legislative process, the policy result was completed through legal proceedings conducted using the legislative department’s developed model of community policy.