This article attempts to suggest role and functions of the children' s museum which is based on life-long learning for the whole man. A children s museum is defined as a center for children who are interested in their own world as well as their environment. This museum can be also contributed to the development of children’ s spiritual, physical, emotional and sensory abilities in the service of life- long learning and further educating school children connected with museum activities in the community. The role of the children' s museum is able to be focused on 4 categories: 1) collection and management. 2) research and education. 3) information communication, and 4) entertainment service. And the functions of the children' s museum can be carried out 6 parts: 1) acquires. 2) conserves 3) researches, 4) communicates, 5) exhibits, and 6) educates, for purposes of eduinfotainment tangible and intangible material evidence of people and their environment. The role and functions of children's museum are established and further executed by parents. teachers. and / or educators vis-a-vis children based on their ways of life. motivation, and needs. A children's museum in the nest generation as the center for inter-generation learning as well as for the purpose of kids' eduinfotainment should be existed in not only a real world but also a cyber world. Interactive communication based on ubiquitous system should be connected with the children' s museums, which should be collaborated with the art gallery. archaeological and historical site. botanical and zoological garden, aquarium, planetarium, science center, archives, natural reserves and so on.