Due to the characteristics of using local materials, low cost and fast construction speed, the mud-filled tube bag dike construction technology has been widely used in the construction of seawall dike projects in Shanghai and the other coastal areas. At present, the construction technology of mud-filled tube bag is mainly the traditional filling construction, and the dry construction method is rarely used. The dry construction technology has the advantages of no need to set up the mud silo, less land occupation, less influence and so on, and has the broad application prospects. Taking the seawall up-to-standard project at the south side of the sluice of Sanjia Port in Pudong of Shanghai as an example, the different construction technologies and technical requirements of mud-filled tube bags are introduced, and the technical essentials of dry construction technology are specially introduced, which provide a reference for the design and construction of similar projects.