Japan is a country that has made its best endeavors to the preservation of traditional Japanese cultural arts in all aspects. Japan's achievement focusing on preserving its cultural arts has earned a great reputation for countries in Asia to follow, in addition, is of high renown all over the world. As is known to all, the ”Culture Resources Preservation Act” of Taiwan has learned a lot from Japan's ”Cultural Asset Preservation Law (文化財保護法)”, however, we are lacking in placing much emphasis on Japanese centenarian development and researches on it. In view of the foregoing reason, the paper devotes to a little analysis and research on the evolution of the Law, especially in the historical background field of the policy of the ”Shinto and Buddhism Separation Law (神佛分離令)” in the early Meiji-Period. In addition, the paper further aims at tracing and studying the subjects, such as the whole people headed for the establishment of so-called ”Cultural Asset Preservation (文化財保護)” system and its law, etc., in chronological order. The content shall be published in order of (Ⅰ) and (Ⅱ).