The invention belongs to the technical field of electrical equipment maintenance, and particularly relates to a fast test connector of sulfur hexafluoride high-voltage equipment. According to the achieved technical aim, the fast test connector of the sulfur hexafluoride high-voltage equipment can achieve connector mounting and demounting work within a short time. According to the technical scheme, the fast test connector of the sulfur hexafluoride high-voltage equipment comprises a connector body; three buckle units are evenly distributed on a concentric array of the connector body; one end of the connector body is connected with a test connector of the high-voltage equipment through the three buckle units; the other end of the connector body is connected with a sulfur hexafluoride tester connector through a pipeline; and the structure of each buckle unit comprises a rectangular spring seat, a spring, a fixed rod and a first nut. The fast test connector is suitable for an electrical system.