Metal-organic-frameworks is a new type of porous crystal material which is assembled by metal ions and organic ligands. Gd-MOF was prepared by GdCl₃·6H₂O and H₃BTC, and its adsorption performance for phoxim pesticides was inves-tigated. The results showed that Gd-MOF could effectively adsorb phoxim pesticides from water, and the saturated adsorption amount of phoxim was 33.5 mg/g. When Gd-MOF was 40~80 mg, the adsorption rate of phoxim could reached 90%; and in all pH range 3~7, there was a certain adsorption force on the phoxim table. It is speculated that the adsorption of phoxim by Gd-MOF may be due to its pore structure and the interaction of Gd³⁺ with phosphorus-oxygen bonds between phoxim. The results of Gd-MOF regeneration experiments show that Gd-MOF has good cycle performance. As a new type of composite material for removing phoxim pesticides from water.