“Cultural Assets Protection Law” enacted in 1982, had undergone four revisions. But private historical houses involve many complex problems, such as cultural assets protection, local development, people’s equity, of assets, and so on “A legal research about the preservation of private historical houses, from the view point of Constitutional Law”, will be three key points elucidated (interpreted) in my article as below: Firstly, it discuss the protection system of property in Constitutional Law and the interpretation of No.236、No.336、No.400 and No.440 of Grand Justice. Secondly, The enactment of “Cultural Assets Law” gives rise to limitation of property. What is the due compensation to the owner of private historical houses base on protection of property rights? And lastly, could we get a balance between the historical building saving and protection of property by following the mechanisms and experiences like “Nation Trust”,“Real Estate Investment Trust” or” Transfer of Development Rights”.People are becoming more and more conscious of unity of human values and regard historic building as a common heritage. The common responsibility to safeguard them for future generation is recognized. It is our duy to hand them on in the full richness of their authenticity.