The invention discloses a bearing-platform-free UHPC pile and column integrated structure, which comprises a large-diameter UHPC pipe pile, a prefabricated pier column and a cast-in-situ bored pile. Apier column socket hole is reserved in the top of the large-diameter UHPC pipe pile, and the UHPC pipe pile is spliced by a plurality of UHPC pipe sections; the prefabricated pier column is located above the UHPC pipe pile and can be quickly spliced with the UHPC pipe pile through the socket hole; and the UHPC pipe section on the lowermost part sleeves the top of the cast-in-situ pile, the contact part of the UHPC pipe section on the lowermost part and the top of the cast-in-situ pile is glued, two spaced annular glued seams are formed, and the position between the two glued seams is filled with an annular water swelling water-stop belt. The bearing-platform-free UHPC pile and column integrated structure is particularly suitable for construction of structure foundations under marine corrosive environments, a bearing platform is omitted, thus the engineering quantity of pile foundation construction can be lowered, and meanwhile wave flow force of a single pile foundation is reduced; and by adopting the UHPC prefabricated pipe sections and the socketed pier column and carrying out fabrication construction, the construction speed can be increased, and structural durability can be improved.