The invention belongs to the field of comprehensive utilization of solid wastes, and particularly relates to a liquified consolidation material and a preparation method thereof. Solid wastes in industry, mining and construction industries as raw materials, a low-activity composite cementing material, a filling material, pulping liquid and an additive are prepared into a vibration liquefied consolidation material which is uniform in macrocosmic and microcosmic, large in flow state and capable of being pumped through a vibration stirring process. The liquified consolidation material has the advantages of being high in mobility, free of backfilling dead corners, self-hardening, free of vibration during forming, high in strength, anti-seepage, anti-seismic, stable in size, environmentally friendly and the like, is suitable for backfilling of fertilizer grooves, pipe culverts, cavities and abutment backs, reinforcing of building foundations, filling of road roadbeds, reinforcing and seepage prevention of river channels, lakes and coastline embankments and the like, and solves the problems that the space is narrow, tamping of special-shaped end faces is uneven, non-excavation cavity backfilling is not in place, and traditional stirring equipment for the flow-state solidified soil is not uniform in stirring.