The utility model discloses an inserted box type sea access road structure which comprises two retaining walls, transverse connecting walls, longitudinal connecting walls and horizontal limit plates. The transverse connecting walls and the two retaining walls are vertically connected to form a box body, the horizontal limit plates are arranged on two sides of the bottoms of the transverse connecting walls, and one or two longitudinal connecting walls vertically intersected with the transverse connecting walls are arranged between the transverse connecting walls. By the aid of the technical scheme, the inserted box type sea access road structure has the advantages that consumption of roadbed materials is low, structural integrity is excellent, a foundation is uniform in stress, settlement deformation is uniform, relative settlement among various structures is easily controlled, the inserted box type sea access road structure needs fewer construction procedures and is small in field engineering quantity, short in construction period and low in engineering cost during construction, and the like.