While River culture is developing towards diversification and innovation，maintaining the traditional roots of Chinese River culture plays an important role in preserving cultural characteristics and core values. From the perspective of happy river construction，Yongding River has important connotation of the times. In ancient times，it expressed the ancestors’ desire to keep the river safe from flood and drought；In modern times，the performance is to promote the construction of water conservancy projects and ensure people’s safety and health；In the new era，it shows that green water and green mountains are Jinshan and Yinshan. In order to realize river development，ecology must first. The construction of the happy river of Yongding River should complement and develop together with the cultural inheritance. Finding out the “water family background” is the premise，and maintaining the vitality of the river is the key. We should shape the development system of the cultural inheritance of Yongding River and the construction of the happy river through “water control，hydrophilicity and water sharing”.