The invention relates to a high-speed bus connector which comprises a plug and a socket. The plug is plugged in the socket, the socket comprises a socket shell, a tightening nut, a conductive square cushion and a jack mounting plate assembly, the jack mounting plate assembly is penetratingly connected into the socket shell, the tightening nut is connected to one end, which is tightened in an inner cavity of the tail of the socket shell, of the jack mounting plate assembly, and a sealing ring is arranged at the other end, which is packaged in an inner cavity of the head of the socket shell, of the jack mounting plate assembly; the plug comprises a plug shell, a connecting ring, a grounding spring, a wave-shaped ring, a lock washer, a retaining toothed ring, a flat gasket, a check ring and a pin mounting plate assembly, the pin mounting plate assembly is penetratingly connected into the plug shell, the connecting ring sleeves the plug shell, a cavity between the tail of the plug shell and the connecting ring is sequentially packaged by the check ring and the flat gasket from the outside to the inside, and a cavity between the head of the plug shell and the connecting ring is sequentially elastically packaged by the wave-shaped ring, the lock washer and the retaining toothed ring in a retained manner from the outside to the inside; the pin mounting plate assembly is correspondingly plugged in the jack mounting plate assembly.