In response to the country’s requirements for the green development level of ports，the design concept of “sponge city” is integrated into the port construction of the phase IV project of the Nansha port area of Guangzhou Port to create an ecological sponge port. The results reveal that，on the premise of satisfying the drainage capacity of the port，through the construction of concave storage yard，green roof，permeable pavement，concave green space and other sponge engineering measures in the drainage system，it can be used to store，infiltrate and adjust rainwater. The storage function can greatly enhance the flood control and drainage capacity of the port，and the research results can provide a reference for the construction of similar sponge ports.