To save the project investment of oil terminal，reduce the construction difficulty and shorten the construction period，in view of the typical island near-shore geological conditions with large rock surface undulation and varying thickness of overburden layer，we compare comprehensively the traditional rock embedded pile structure，anchor rock pile structure and new combined pile structures with steel pipe pile core filled with concrete，and recommend the combined pile scheme with steel pipe pile core filled with concrete. The construction technology，technical innovation，and economic effect of this solution are introduced，which may serve as reference for the design of piled quay structures under similar complex geological conditions.