The invention relates to a pipe hoop truss fender pile and auxiliary construction equipment thereof. The pipe hoop truss fender pile and the auxiliary construction equipment are applied to the technical field of foundation pit bracing in civil engineering, the bracing form based on cast-in-place concrete piles can be completely replaced, and part of SMW piles and underground diaphragm walls can be replaced. The pipe hoop truss fender pile is composed of pipe hoop trusses, packing, stress rod bodies and surrounding materials. The pipe hoop trusses are connected through web members to form a truss with pipe hoops as chord members. The pipe hoops, the packing in the pipe hoops and the stress rod bodies form reinforced chord members. The reinforced chord members and the web members form a reinforced truss jointly. The surrounding materials are located on the peripheries of the pipe hoops and used for assisting the reinforced truss in bearing water and soil pressure. The auxiliary construction equipment is formed by additionally arranging at least one additional rotating wheel on a mixing shaft of a traditional multi-shaft mixing pile machine, the additional rotating wheels rotate along with the mixing shaft for mixing, and the mixing shaft supplies power to the additional rotating wheels. By adoption of the equipment, the mixing quality is better, and the construction efficiency is higher. By using the fender pile technique for construction, the advantages of cost reduction, high safety, environmental friendliness, shortened construction period and the like are achieved.