The invention relates to a concrete material used for pouring a pier stud, an admixture and a usage method of the concrete material. The concrete material comprises the following components in parts by weight: 80 to 120 parts of Portland cement, 350 to 420 parts of cobblestone, 220 to 280 parts of sands, 2 to 26 parts of an admixture, and 40 to 120 parts of water; wherein, the admixture comprisesthe following components in parts by weight: 10-20 parts of lignosulfonate, 50-70 parts of fly ash, 1-5 parts of calcium nitrate, 0.5-2 parts of sodium nitrite, 1-5 parts of zeolite powder, and 1-5 parts of hemp fiber. The concrete material adopts the admixture, so that when the concrete is used for pouring the large pier stud, the good appearance quality can be presented, and the phenomena such as segregation, cracking, honeycomb, spongy surface, cavity and bubbles can be effectively avoided. The admixture can be used for concrete materials of the pier stud for bridges, high-speed rails, viaducts, and the like, and can be also used in combination with steel bars for antivibration resistance.