The invention discloses modified concrete. The modified concrete contains a component A, a component B, cement, sand and gravels, wherein the component A contains the following components in parts byweight: 80-85 parts of epoxy resin, 2-20 parts of carboxylic butadiene acrylonitrile latex, 2-8 parts of glycol and 0.01-1 part of a defoaming agent; the component B contains the following componentsin parts by weight: 65-70 parts of a solidifying agent, 0.5-1.5 parts of cellulose ether, 2-5 parts of a polyvinyl acetate emulsion, 5-13 parts of an epoxy resin non-activated thinner and 0.01-0.08 part of a defoaming agent; the weight ratio of the component A to the component B is (2-15) to 1; and the ratio of the total weight of the cement, the sand and the gravels to the weight of the componentA is (16-20) to 1. The prepared high-quality epoxy resin concrete can be used for repairing damaged parts of concrete surface honeycombs, exposed reinforcing bars and the like, is an ideal interfaceprocessing material for connecting new and used surface and reinforcing structures and can be adapted to the construction of moist basement layers.