TLS-390T high-performance modified epoxy resin injection grouting adhesive is mainly made of modified epoxy resin, with the addition of nano level high-strength inorganic fillers. The mutual solubility between nano inorganic materials and bonding resins enhances the bonding performance of the structural adhesive, making the product have the advantages of high strength, strong bonding force, good toughness, moisture resistance, aging resistance, acid alkali salt resistance, good seismic performance, and good heat resistance. It also has excellent thixotropy and can be used for upward construction with large aperture.