Under the current policy of sea area use，application of permeable wharf is more viable.This paper combines engineering example，comprehensively considers natural conditions and usage requirements，and addresses problems of conventional pier wharf under low elevation，heavy load and shallow batholith conditions.Through theoretical calculation and physical model tests，the structure is analyzed and compared for stress，and optimized from the perspective of convenient construction.A prefabricated caisson pier wharf structure is proposed.The new structure can meet the requirements of low elevation of wharf surface，resist considerable service loads and wave force，improve the adaptability to uneven settlement of the foundation，and provide a more economical and convenient structural selection for the construction of permeable wharf structures in areas where geological conditions are not suitable for using pile foundation structures.The prefabricated caisson pier wharf has been applied in the Lanshan Port area of Rizhao，which provides reference for the construction of permeable wharf under similar conditions.