The invention discloses a wound-managing and pain-settling plaster and belongs to the technical field of medicine. The plaster comprises a dressing core backing layer, a magnetic rubber layer, a heating layer, a silica gel layer, a medicine rubber layer and release paper sequentially arranged from bottom to top, the magnetic glue layer is formed by well mixing nano neodymium iron boron magnetic powder, carboxymethyl chitosan rubber cement, polyvinyl alcohol rubber cement and glycerin, coating onto the dressing core backing layer and drying at temperature, the heating layer is formed by well mixing iron powder, activated carbon, sodium chloride, super absorbent resin, sodium polyacrylate rubber cement, polyvinyl alcohol rubber cement and polystyrene granules and pressing onto the magnetic rubber layer, a medical silica gel dressing film is adopted as the silica gel layer, and the medicine rubber layer is formed by well mixing traditional Chinese medicine extract, glycerin, carboxymethylchitosan rubber cement and polyvinyl alcohol rubber cement, coating onto the release paper and drying at low temperature and pasted with the silica gel layer. A conventional thermotherapy method, a magnetic field therapy method and traditional Chinese medicine cataplasm are organically combined, transdermal absorption of medicine is promoted through magnetic-thermal synergism, and magnetic effectand thermal effect have the characteristics of being controllable, continuous and stable.