The invention discloses a method for adopting template electrospinning for preparing a flexible auxetic material. The method comprises the steps of 1, preparing a collection template with a pattern or a concave-convex structure; 2, adopting a high voltage electric field for performing static electricity traction spinning on a polymer solution or a polymer fusion solution and collecting the solution on the collection template prepared in the step 1; 3, stripping the flexible auxetic material collected in the step 2 from the collection template; 4, performing postprocessing on the flexible auxetic material so as to improve the mechanical property of the flexible auxetic material or giving the functions to the flexible auxetic material. The method can be used for continuous or intermittent preparation of the flexible auxetic material, and improving the production efficiency of the flexible auxetic material; the prepared flexible auxetic material can be used for the fields of garments, filtering material, biomedicine, tissue engineering, photoelectric materials, surge guard, sensors, composites and the like.