The invention provides a material for removing lead in heavy-metal pollution soil leacheate, wherein the material is an iron-based bentonite material. The invention simultaneously provides a preparation method of the material and a method for removing the lead in the heavy-metal soil leacheate by using the material. By applying the material and the methods provided by the invention, heavy metal lead in the leacheate of typical chelate eluant (EDTA: Ethylene Diamine Tetraacetic Acid), and the material is guaranteed to be environment-friendly, cannot result in secondary pollution, is easy to produce and is recyclable.