The utility model discloses a compensator for titanium sponge production. The compensator comprises a corrugated tube, an end face connection plate, a first flange and a second flange. The end face connection plate is fixedly connected with one end of the corrugated tube. The first flange is movably arranged between the corrugated tube and the end face connection plate in a sliding manner and is used for being connected with a distillation flange of a distillation device. The second flange is fixedly connected with the other end of the corrugated tub and used for being connected with a vacuum flange of a vacuum pipe. Therefore, the corrugated tube can effectively buffer vibration of the vacuum pipe, so that the vibration strength is largely reduced. The compensator can be bent and straightened, belongs to soft connection, and has the advantages of easiness in assembly and reduction in labor intensity compared with the traditional hard connection. The compensator compensates thermal deformation of the vacuum pipe, so that the vacuum pipe is unlikely to damage.