In order to find a new type of metal-organic polymer-based anode material with excellent electrochemical performance, a new type of cobalt-based metal-organic polymer (Co-MOP) was synthesized by hydrothermal method with trimellitic acid as the organic ligand and cobalt nitrate hexahydrate. Co-MOP was calcined at 500 ℃, 600 ℃ and 700 ℃ under air atmosphere to obtain the corresponding Co-MOP-500, Co-MOP-600, and Co-MOP-700 derivative materials. Co-MOP derived materials have been studied as anode materials for lithium-ion batteries. The electrochemical test results show that Co-MOP-600 exhibits excellent electrochemical performance. At a current density of 100 mA/g, the first discharge specific capacity of the Co-MOP-600 electrode reaches 1818.5 mAh/g, and the specific capacity can be maintained at 1308.5 mAh/g after 100 cycles.