For conservation project of historical towns, it is indispensable to grasp exactly the present condition of streets scene. However, the big task is how to evaluate it. Self Organization Critical State Analysis is using in this research to evaluate the street scene. The characteristic elements which constitute the street scene are evaluated and analyzed by this method resulting in "stable" or "fallen" statements, this is, the part which has a unity in view and the one which does not have it. These results can be used to express the harmony of the whole town or how to treat each of its parts. It will be helpful for historical town planning and to determine the conservation areas of the historical towns.
