In this paper we are going to evaluate historic preservation of Harbin Zhongyang street, a historic main street formed in the beginning of 1900s, and find the principles we should take for the next step. Harbin Zhongyang street has been conserved and improved since 1997. We acquired old photos of the street and drew the facades of the buildings of the day and compared the present facades. As the result we found that even the preserved buildings have been changed in many points, inappropriate repairs have done and new developments have not inherited the patterns or characters of historic buildings.
