Sealing performance detection equipment for high-pressure sealing joint

The utility model provides a sealing performance detection device for a high-pressure sealing joint, and belongs to the technical field of sealing joints. A sealing performance detection device for a high-pressure sealing joint comprises a base, the base is provided with a detection assembly and an installation assembly, and the detection assembly is fixed on the base through two supports; the detection assembly comprises a main compression tank installed on the support, a compression bolt for compressing air is arranged in the main compression tank, an auxiliary compression tank is fixed to the end face of one side of the main compression tank, and the internal space of the main compression tank and the internal space of the auxiliary compression tank can be extruded, so that the sealing joint can be in a high-pressure state; in the intermittent extrusion process, when the indicating rod descends, the maximum sealing performance, namely the bearable maximum pressure, of the current sealing connector can be v