Cultural property is solid representative of the continuity of a country, while the historical monuments are the most attractive items in related with it. We understand that each kind of historical monuments represent different stage of development by means of its particular nature. As a result, the advanced countries are ensuring to keep its historical heritage in line with its on-going modem social activities, cultural developments and city planning. In respect of economy, Taiwan gains a predominant place in the internationalcommunity. But the government over emphasized the economic effects and lack of concern the environment of living space linking with our historic cultures. This article is to elucidate the following things: principle and necessity of the preservation of cultural property; the legal ground, the policy and doings of Cultural Affairs Bureau; the existing system and improvement progress on the preservation of cultural heritage in the Taiwan.