An ultrahigh-pressure zero-dripping-leakage quick connector comprises a first connector assembly (1), a second connector assembly (2), a connector clamping ring (3), a position-clamping steel ball (4), a connector baffle ring (5) and a sealing ring (6). Full sealing of the connector is achieved through butting of the first connector assembly (1) and the second connector assembly (2) and the sealing ring (6); automatic locking of the connector after the butting process is achieved through the connector clamping ring (3), the position-clamping steel ball (4) and the connector baffle ring (5); during releasing of butting, the connector clamping ring (3) is rotated, so that the connector automatically quits a locking state; and in the situation of ensuring zero-dripping-leakage, a shell and internal devices of the connector assemblies are made of high pressure resistant materials, liquid transportation under the high pressure and airtight conditions is ensured, stability is high, and the structure is simple.