The utility model discloses a conductive knife switch detection device comprising a pedestal, a conductive knife switch support used for installing a conductive knife switch, and a static contact support used for installing a static contact. Wherein the conductive knife switch bracket and the static contact bracket are both fixed on the base; the two static contact supports are located on the twosides of the conductive knife switch support respectively. The conductive knife switch support comprises a conductive knife switch support body, a bearing seat which is rotatably arranged on the conductive knife switch support body and is used for installing a conductive knife switch, and an operating mechanism which drives the bearing seat to rotate. And the operating mechanism is provided with an overturning moment detection port. According to the conductive knife switch detection device, the assembly workload is reduced, the detection difficulty is reduced, and the detection efficiency is improved.