Abstract: Radionuclides produced by nuclear medical experiments, nuclear medicine treatment and nuclear accidents are inevitably released into the natural environment such as water and soil, causing great damage to the environment and the genetic, immune, skeletal and nervous systems of the human body. With excellent surface properties and magnetic responsiveness, magnetic nano-adsorption materials are widely used in the removal of radionuclides from water. In this paper, the research progress of the magnetic nanomaterials for removing radionuclides from water is reviewed.