superabsorbent polymer composite (PP-SA) was synthesized from the pomelo peel powder (PP) and poly acrylic acid-co-acrylamide(P(AA-AM)) using solution polymerization method. The components of PP were analyzed and the mechanisms for formation of PP-SA were proposed. The molecular structure characteristic of PP-SA was characterized by FTIR. It shows that P(AA-AM) was successfully grafted on PP. The TG result indicates that the thermostability of P(AA-AM) is strengthened by introducing PP into P(AA-AM). The properties of urea solution retention and urea load/release were researched systematically. The retention capability of PP-SA in 6 g/L urea solution was the highest, reaching to 362 g?g-1. The urea loading ratio of PP-SA swelling in urea solution of 10 g/L was 66.7%. And its urea release ratio can reach to 74% in distilled water.