Park Kyu-hwan was born in Seoul, South Korea in 1970, and is currently a professor of law at Youngsan University in Gyeongsangnam-do and Busan, South Korea. He received his Juris Doctorate from [Juristische Fakultät, Martin-Luther Universität Halle-Wittenberg] in Germany in 2004. He served as a Researcher at the Institute of Legal Research at the Yonsei University(S. Korea), as a Research officer at the Supreme Court of Korea, and as a Gast Professor at the [Freie Universität Berlin] (in charge of 4 subjects per week). He also stayed in Amman for one year as a visiting professor at Jordan University. He pays attention to the development process of the new changing [rule of law; Rechtsstaat] in the 21st century, and the ecological matter as a major factor influencing it. In the meantime, related research results include “Ecology, Ecological Democracy, Rule of Law (2015)”, “Eine Forschung zur Einführung des ökologischen Grundrechts - Der erste Schritt vom Herrscher zum Koexistierende (2018)”, “Der kooperative Rechtsstaat-Structural changes of the Rule of Law in the 21C(2021)”.