Disclosed are cermets for magnetic sensors. The disclosed cermets for magnetic sensors may include at least six carbides and at least one refractory metal. The carbides are selected from TiC, VC, ZrC, HfC, WC, NbC and TaC, the refractory metal is tungsten, the cermets for magnetic sensors operate in 100˜3000 K, the magnetic precision is between 99.6˜99.9%, such that the cermets for magnetic sensors are suitable for the magnetic sensors to operate at high temperatures.