The fullerene C60 molecule itself is a non-conductive insulator, but when the alkali metal is embedded in the space between the C60 molecule, the series of compounds of C60 and alkali metal will be transformed into a superconductor, such as K3C60, and has a high critical temperature of superconductivity. Compared with oxide superconductors, C60 series superconductors have the advantages of perfect three-dimensional superconductivity, high current density, high stability, easy to develop into wires, etc., and are a new type of superconducting materials with great value.