Provided are an acrylic water absorbent resin with a high liquid absorption rate and a preparation method and a use thereof. The raw materials for preparing the acrylic water absorbent resin comprise acrylic acid, a base and water in a mass ratio of (25-45) : (7-22) : (33-68), and 0.001 wt%-1 wt% of a cross-linking agent, 0.01 wt%-2 wt% of a high-temperature resistant foaming agent, 0-10 wt% of a comonomer, 30 ppm-500 ppm of a reductant, and 0.001 wt%-1 wt% of an initiator, based on the mass of the acrylic acid. The liquid absorption rate of the acrylic water absorbent resin is 15 s-40 s. The water absorbent resin can be used as a liquid absorbent material in paper diapers, baby diaper pads, sanitary napkins and the like in the hygiene industry, and also can be used as a water absorbent and water retaining material in desertification control, water shutoff in oil field, agriculture and forestry water retention and other industries.