This study discusses the issue of government strategies and policies on a sustainable environment for Indonesian millennials and the contribution and role of legal experts to protect the environment rather than environmental law experts who contribute to sustainability and sustainability in the form of policies and strategies. To prove this, we reviewed several publications, books, and journals, which we then analyzed carefully to obtain valid and convincing answers from scientific evidence sources, both in the scope of national and international studies. This study relies on data published between 2010 and 2022, where we examine the data with in-depth analysis and interpretation under phenomenology to find valid data. Based on the results of the study and discussion, we can conclude that the contribution of environmental law experts is significant in inviting Indonesian millennials to maintain a healthy environment for sustainability and everyday health through the formulation of policies and strategies proposed for the government and to be implemented in all projects and governance. It is hoped that these findings will be helpful in further environmental studies.