Historical heritage resources are the wealth of all mankind, and it’s important to properly handle the relationship between protection and development. The urbanization process in China brings huge inf luence that profoundly changes the urban development pattern promoting a new exploration of the urban historical heritage conservation. Taking the regulation of the Linhai ancient city wall as an example according to the main body and the object of landscape semiotics, it finds out the double attributes of the signifier and the signified to identify its sign's implication as landscape heritage.Then on this base, it puts forward the development route in authenticity and systemic principle and makes the landscape symbols context complete in order to realize the understandability, communication and sustainability of heritage protection.