The invention discloses an electric insulation safety tool performance detection device, which comprises a machine body, a lifting mechanism and a processing device, and is characterized in that the top end of the lifting mechanism is fixedly connected with the top of the inner wall of the machine body, the processing device is arranged at the output end of the lifting mechanism, and the top end of an arc-shaped supporting rod is fixedly connected with the bottom edge of a driving turntable; the clamping testing device is arranged at the bottom end of the arc-shaped supporting rod, the top end of the arc-shaped pressing rod is hinged to the surface of the base body, the pressing head device is arranged at the bottom end of the arc-shaped pressing rod, the curve elastic piece is fixed between the two corresponding sides of the surface of the arc-shaped pressing rod and the surface of the fixing plate, and the testing device is arranged in the center of the bottom of the base body. The invention relates to the technical field of electrical equipment detection. According to the performance detection device for the electric insulation safety tool, the elastic clamping effect is achieved, elastic clamping can be carried out, the device is not prone to being affected by clamping force, then the situation of clamping marks or damage is not prone to occurring, safety and reliability are achieved, and the working efficiency and the use performance are improved.