Disclosed are a super-absorbent-resin-type self-maintenance material for concrete and a preparation method of the self-maintenance material. The method comprises: introducing a super-absorbent-resin-type functional component material for water maintenance into concrete, wherein the material includes deionized water, disodium ethylene diamine tetraacetate, triethanolamine, interpenetrating polymer networks, acrylic acid and a derivative thereof, acrylamide and a derivative thereof, a reducing agent, a cross-linking agent, and an initiator, and carrying out a constant-temperature polymerization reaction, standing, shearing, drying, and pulverizing to prepare the self-maintenance material. Disodium ethylene diamine tetraacetate, triethanolamine, and interpenetrating polymer networks which can highly absorb an alkaline ionic solution are introduced, so that the problem that a conventional super absorbent resin is poor in absorption of a cement hydrated solution is overcome. (Un-neutralized) acrylic acid and the derivative thereof are adopted, and the preparation method and device are simplified. The self-maintenance material has an absorption rate ratio of water to a concrete mixture centrifugate being 0.5-1.2, and a particle size of 0.1-50.0 mum. The risk that a self-maintenance material is liable to cause poor workability and lost mechanical properties of concrete is lowered.