Abstract: Advanced deep hole grouting reinforcement technology is proposed. The effects of VAE emulsion on cement-based materials were studied. The effects of VAE emulsion on the bonding strength between cement based materials and coal and the compressive strength of cement based materials were studied by axial tensile test and cube compression test. The microstructure characteristics of VAE modified cementitious materials and coal interface transition zone were analyzed by scanning electron microscopy. The results showed that the water cement ratio of composite grout showed a trend of first decrease and then increase with the increase of aggregate cement ratio. VAE emulsion increased the interfacial bond strength between slurry and coal and the compressive strength of slurry consolidated coal block. The porosity of cement slurry decreased with the addition of VAE emulsion, and the compactness of the effective layer structure was enhanced. The VAE emulsion diffused into the ordinary cement paste to form a polymer film “tie” structure, which improved the composition structure of the cement based material and coal interface, thus enhancing the bond strength between the cement based material and the coal body.