Located at the junction of Zhejiang and Shanghai, Luzhuangsuo City is a famous coastal defense castle building in ancient China. The original system of Lucheng is along the corner of Puwan, due to the tide rising and falling, the sediment silt, gradually become a beach with a lot of reeds. More than 1,500 years ago, the ancestors who came here to pick up the wasteland took the leaf weaving for the door and got the name "anus". Since the Tang and Song Dynasty, it has been a key place for the protection of the city. In the 17 years of Ming Hongwu (1384), it was built for flood prevention. The first thousand households stationed in Xiaji hosted the construction of the city wall at the foot of Longshan. After three years, the place was renamed "the city".