By universal ethics-advocates such as Prof. Hans King, it is said that universal ethics on the world is based on true communications and cooperations among religions beyond religious origins and pharisaism. This paper is to review Jungsan s Samdong ethics of Wonbuddhism as a model to universalize korean new religious thoughts to universal ethics. Won-buddhism s Samdong Ethics can be reorganized to a direction to realize it in the fields of religious educations as following. Firstly, Donwondoli includes the meaning of religious pluralism-education. the principle of communication and cooperation among religions can be easily found in traditional korean thoughts, and it is needed to introduce religious pluralism into religious educations. Secondly, the meanings of human and life esteem can be found in Dongkiyeongye. To create a true culture keeping human being esteem, education for human and life esteem must be introduced in order to take away bad shadows on the world. The next is that Dongchuksaup can deduce the meaning of peace-education and co-existing beyond ideological conflicts. To create a world of co-existing, peace-education beyond ideologies, nations, and ethnics should be essential in religious education.In conclusion, religions in the 21st century should include the willingness and ways to solve future issues and problems brought in the various fields such as religion, ethnics, ideology, science, and ecology. In this view, common thoughts from new korean religions may have ideological things enough to cope with main issues in the 21st century. However, when failing to generalize and to reorganize these things as common types, it may lose a way and possibility to guide korean spiritual community in the early 20th century.