The invention relates to a ceramic relay welding clamp and method, in particular to a ceramic relay welding clamp and a ceramic relay positioning welding method. The method comprises the following steps that a kovar frame sheet in a relay is placed in a positioning groove in a brazing clamp base, and a silver copper welding flux sheet is placed on the upper surface of the kovar frame sheet; and aceramic shell is placed on the kovar frame sheet till the inner surface of the ceramic shell is attached to the position of a ceramic inner diameter positioning step of the brazing clamp. Compared with the prior art, the ceramic relay welding clamp and the ceramic relay positioning welding method have the beneficial effects that the large accumulated tolerance generated after the kovar frame sheet, ceramics and a copper column are positioned and then assembled together is eliminated; and the integrated positioning brazing manner is adopted, the deviation of the kovar frame sheet, the ceramicsand the copper column is little, and the electric performance of the later machined ceramic relay is excellent.