The invention discloses a super-high early-strength grouting material for repairing a ballastless track structure of a high speed railway, which is prepared by the following steps of: sequentially adding water, polymer emulsion, a water reducing agent, a rheology accessory agent and an antifoaming agent; adding admixture, cement, an expansion agent, a coagulator and a retarder, and stirring and blending the materials at a high speed. The parts by weight of the ingredients are as follows: 100 parts of superfine cement, 50-150 parts of admixture, 25-50 parts of redispersible emulsion powder, 3-10 parts of polymer emulsion, 5-25 parts of expansion agent, 0.1-1.0 part of carboxylic acid water reducing agent, 0.1-10 parts of coagulator, 0.1-5 parts of retarder, 0.001-0.005 parts of rheology accessory agent, 0.001 part of polyether-siloxane copolymer antifoaming agent and 20-70 parts of water. The material disclosed by the invention has the advantages of low viscosity, super-high early-strength, low cost, fatigue resistance, aging resistance and water erosion resistance, and the like, so that the material can be used for repairing the concrete gaps of ballastless tracks of high speed railways, gaps of cement asphalt mortar filling layers, cracks and damages.