The utility model relates to a probe is put in the office that is used for SF -6 circuit breaker partial discharge detector's probe fixing device, is by fixing the base on insulator spindle upper portion, fix on the base to and the stabilizing ring that covers outside the probe is put in the office is constituteed, being fixed with the probe fixing base on the base, having seted up the probe groove in the probe fixing base, set up leaded seam on the lateral wall of probe groove, the office that it pops one's head in to have went between puts the probe and sets up at the inslot of popping one's head in, and the lead wire of popping one's head in is drawn forth by the lead wire seam. This application can effectually prevent the electrified danger that the time measuring person electrocute of examining, pushes away through drawing of insulator spindle during the multimetering and can take off fast or fixed probe, improves the work efficiency that the detection was put to the end greatly. The utility model provides a probe fixing base adopts ferrite lattice materials processing to form, through the location directly perceived of magnet suction cooperation stabilizing ring, can effectually put the probe with the office and fix the measuring point position at the circuit breaker shell, not only plays the fixed action, shields the effect of external interference in addition, and is convenient, practical in the multimetering.