The ancient seawall of the Qiantang River is a great flood control project which embodies the wisdom of the ancestors. It nurtures and derives rich material and intangible cultural heritage,which has diverse forms,distinctive characteristics and outstanding value.Using the methods of literature research and field research,this article sorts out and classifies the carrier forms of the Qiantang River seawall cultural heritage,analyzes its value and current status of protection and utilization,proposes the principle of revitalizing and utilizing the cultural heritage of the Qiantang River seawall,emphasizing “taking the ancient as the core and inheriting traditions while innovating”. Specific measures are proposed from four aspects,namely showcasing architectural and engineering culture, continuing the cultural spirit of water management,integrating regional cultural characteristics and applying modern technological culture.