1. The protection planning of historical and cultural cities is a special urban planning design with the main contents of protecting historical and cultural cities, coordinating protection and construction development, determining protection principles, contents and key points, delineating protection scope and proposing protection measures.

2. The city is the product of the economic and cultural development of human society, and it is a social microcosm that marks the era and region of human life. It reflects the highest achievements of a certain era and region in politics, economy and culture, and is a batch of historical and cultural heritage accumulated for a long time.

3. In order to protect these cultural heritages with historical, artistic and scientific values, many countries in the world have adopted protection policies, strengthened protection planning and specially formulated laws for this purpose. Venice in Italy has basically maintained its original features. The old town of Paris, France has basically retained its original layout. The United States restored and protected the colonial town of Williamsburg in the18th century. The Soviet Union published the list of historical cities in 1949, and put these cities under the special supervision of the General Administration of Architecture and Monuments. 197 1 year, Japan promulgated the law on special measures for the preservation of historical habitats in ancient capitals, which strengthened the protection of historical and cultural cities.