To provide glass ceramics composed of SiO2-Al2O3-MgO-CaO based glass and Al2O3, and glass ceramics wiring board whose adhesion strength with a wiring conductor is high.

The glass ceramics wiring board is constituted by laminating a plurality of insulating layers which contains SiO2-Al2O3-MgO-CaO based glass and Al2O3. In the glass ceramics wiring board wherein the wiring conductors whose principal component is silver are formed on surfaces of the insulating layers and between the layers, the wiring conductor contains glass containing SrO. As a result, wettability of interface between the wiring conductor and the glass ceramics composed of SiO2-Al2O3-MgO-CaO based glass and Al2O3is improved, and adhesion strength of the wiring conductor is improved.