The invention relates to a ceramic component for a xenon metal halogen lamp of higher and lower beams, and comprises a dipped headlight fixed bore, a high beam fixed bore, a dipped headlight line bore and a high beam line bore. The dipped headlight fixed bore, the dipped headlight line bore, the high beam fixed bore and the high beam line bore are symmetrically arranged on the ceramic component, with the center of the ceramic component serving as a benchmark. A center line of the dipped headlight fixed bore is parallel to a center line of the high beam fixed bore. Compared with the prior art, the invention well solves that heat insulation problem of the xenon metal halogen lamp and a lamp head, and simultaneously, the assembling need of a car lamp of high and low beams, which is in the form of the xenon metal halogen lamp and the xenon metal halogen lamp, is satisfied. A produced car lamp bulb has the advantages of long service life, high brightness energy conservation and good heat insulation effect. The safety of a lamp assembly system is guaranteed, and good low and high beams for cars can be exported.