In order to overcome the stability and safety issues of the project of Shenzhen Mawan power plant specialized coal unloading terminal during its upgrading process, the technical proposal of using mold bag concrete for quay foundation protection, high-pressure grouting of partial foundation bed and large floating fender is presented. Through experimental studies, the technical problems including the construction control of front quay basin dredging, foundation protection structure of mold bag and construction technology of foundation partial highpressure grouting are resolved. The experience of this project may serve as reference for similar projects.