The invention relates to high wear-resistant epoxy coating, a preparation method of high wear-resistant epoxy coating and a high wear-resistant epoxy coating layer. The high wear-resistant epoxy coating provided by the invention is characterized by being prepared from an A component and a B component, wherein (1) the A component is prepared from the following raw materials in percentage by mass: 45 to 55 percent of epoxy resin, 3 to 5 percent of toughening agent, 3 to 5 percent of diluting agent, 5 to 10 percent of accelerator, 2 to 5 percent of silane coupling agent, 20 to 25 percent of abrasive aggregates, 5 to 10 percent of filler and appropriate percent of pigment; (2) the B component is prepared from the following raw materials in percentage by mass: 15 to 20 percent of MXDA (M-Xylylenediamine), 15 to 20 percent of IPDA (Isophorone Diamine), 3 to 5 percent of 1,3-BAC (1,3-bis(aminomethyl)-cyclohexan), 25 to 35 percent of polyether amine D230, 25 to 30 percent of styrenated phenol and 5 to 10 percent of TMPTA (Trimethylolpropane triacrylate); the A component and the B component are mixed according to a proportion of 1:5. The high wear-resistant epoxy coating disclosed by the invention has excellent wear resistance, high hardness, good heat resistance and water resistance, good chemical reagent corrosion resistance, high fullness, high construction efficiency, convenience in construction and a wide application range.