Every city has its own history , every nation has its own unique culture . Historical and cultural city as the ancient city of outstanding representative , has important history, culture, art and scientific value . But urban development to the pluralism and urgency of urban construction and historical and cultural heritage protection contradiction . The traditional culture and the modern technology homozygous coexistence , mutual coordination , protect reuse historical building needs government , professional and public unity . The urban culture memory the visual sense except image, and the imagination of space environment around feeling, from ancient to modern, step by step, the change of records of history, environment evolution. So we protection is not isolated cage, but far concept and shall touch, but feel history of memories, and precipitate social function, make it play to bring cultural value and urban economic value, achieve a low carbon cities balanced development.