This polymer based absorbent material is a kind of water absorbent polymer made by poly-acrylic acid salt and mainly used for pet mat products, and has a unique physical conformation and excellent hydrophilic groups. It is a kind of water absorbent material that can absorb water and urine. It has a special absorption capacity to normal saline and pet urine with a quick absorption speed and a large absorption amount. It has a little infiltration after absorption, strong pressure resistance and can repeatedly absorb pet urine. Its particles are fine, so we can’t feel granular on the surface of pet pads.