The invention discloses an environment-friendly grounding resistance reduction material facilitating vegetation growth. The material comprises, by weight, 20-50 parts of bentonite, 20-50 parts of vegetation growth materials, 3-10 parts of vegetation growth elements and 2.5-6 parts of conductive fillers. A preparation method of the grounding resistance reduction material includes the steps: preparing bentonite suspension liquid for standby application; preparing conductive filler dispersion liquid; modifying the bentonite by the conductive filler dispersion liquid; adding vegetation growth accelerating liquid into modified bentonite; performing vacuum filtration, washing, filter residue taking, drying, activation, grinding, screening and the like after water bath stirring is implemented toprepare the grounding resistance reduction material. The material has the advantages that the specific resistance of the grounding resistance reduction material is remarkably reduced, the corrosion rate of the grounding resistance reduction material is remarkably reduced, water absorption of the grounding resistance reduction material is remarkably improved, and vegetation growth is remarkably accelerated.