Preservation of the historic buildings has become a goal for the entire world. In this perspective; reusing the historical buildings has become one of the predominant visions to achieve the preservation. In this paper different strategies for reusing of historical buildings have been analyzed, so that the appropriate function of each historical building can be chosen, based on scientific study and clear objectives. The research will begin with reviewing the methodologies of design solutions for reuse, analyzing the conditions of application of each methodology and the factors influencing the choice. In addition, the research will present the various strategies for reuse of historical buildings, concluding the advantages and disadvantages of each strategy.