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The displacement of the dock wall after excavation is inevitable in the construction of anchor plate pile dock wall structures on soft soil foundations. For composite dock wall structures that use flexible walls such as diaphragm walls and anchor structures, the stress system of the structure is relatively complex, and the working conditions change in each stage of construction, resulting in different displacement trends of the structure. To ensure the requirements for the net width of the dock, the displacement control measures for each stage of the structure were proposed through the analysis of the working conditions and numerical calculation of the displacement of the dock wall and the anchor structure behind the wall. At the same time, the displacement was reserved based on the numerical calculation conclusion. Based on the actual monitoring data of construction, the reliability of numerical calculation was verified synchronously, and then a displacement control technology for docks can be developed for promotion. [ABSTRACT FROM AUTHOR]