The invention discloses anti-radiation C40 concrete used for a prefabricated part. The concrete is prepared by mixing the following ingredients in parts by weight: 200-300 parts of cement, 120-210 parts of coal ash, 700-750 parts of river sand, 1,100-1,200 parts of gravels, 7-10 parts of an additive, 20-40 parts of an expanding agent and 140-160 parts of water. Compared with the prior art, the anti-radiation C40 concrete has the following advantages: 1, basalt is taken as an aggregate, and the performance density of the concrete is ensured to be 2,350kg / m<3> through optimization of a match ratio, so that the anti-radiation C40 concrete has the performance of shielding proton rays and neutron rays, and the strength of the concrete reaches the C40 grade; 2, the quantity of induced radioactivity of a concrete shield wall is controlled by strictly controlling the content of harmful elements in raw materials of the concrete; 3, by mixing a large amount of admixtures, solid wastes are utilized, the cost is lowered, and the hydration heat and pre-cracking of the concrete can be greatly reduced; 4, by adding the high-performance expanding agent, the shrinkage of the concrete is compensated, the cracking caused by shrinkage is prevented, and the radiation shield effect is intensified.