The effect of degree of crosslinking and amount of diluent on the physical properties and adsorbability of uranium for RGP resins were investigated. The chemical and physical properties and adsorbability of uranium on RGP resins were effected by degree of crosslinking and amount of diluent. The order of recovery and adsorbed amount of uranium with RGP resins for effect of degree of crosslinking and amount of diluent are as follows RGP-10(50) RGP-1 (50) > RGP-2 (50) > RGP-5 (50) > RGP-0 (50) and 146.06, 144.62, 129.25, 117.11, 93.13 mg/g, RGP-2(100) > RGP-2(75) > RGP-2(50) > RGP-2(30) > RGP-2(0) and 144.79, 131.69, 129.25, 124.61 and 80.6 ㎎/g.