Cement, as a common grouting material, emits a large amount of CO2 during its production process. Geopolymer can effectively replace cement due to its excellent performance and green, low-carbon advantages. [Purposes] In response to the dual-carbon strategy, the amount of cement is reduced to lower carbon emissions. [Methods] In this paper, fly ash, slag and cement are used as raw materials, and naphthalene water reducing agent is added to prepare geopolymer-cement grouting materials, and the effects of water glass dosage, liquid-solid ratio, and fly ash dosage on the flow degree, final setting time, and compressive strength of the grouting materials under the effect of naphthalene water reducing agent are investigated, and combined with Scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) to analyze the microstructure, physical phase composition, chemical bonding, respectively. [Findings] The results showed that: the fluidity decreased with the increase of water glass doping, and increased with the increase of liquid-solid ratio and fly ash doping; the final setting time was shortened with the increase of water glass doping, and prolonged with the increase of liquid-solid ratio and fly ash doping; the 28-day compressive strength increased with the increase of water glass doping, and decreased with the increase of liquid-solid ratio and fly ash doping. Microscopically, the increase of water glass doping promotes the dissolution and polymerization reaction of aluminosilicate, which generates more dense gel material; the increase of liquid-solid ratio reduces the degree of polymerization reaction, and the microstructure of the material is loose and porous, and the densification of the specimen is reduced; the increase of fly ash doping reduces the degree of polymerization reaction, and the un-reacted fly ash particles in the specimen increase, and the microstructure is looser. [Conclusions] In order to ensure that the material has good fluidity, setting time and mechanical properties, the water glass dosage should not be higher than 30%, the liquid-solid ratio should be greater than 0.6, and the fly ash dosage should be between 40% and 60%.