The invention relates to a ship oil lubricating and sealing device, in particular to an improvement on a deep water operation oceaneering ship oil lubricating and sealing device. The invention provides a high-performance pressure self-regulation ship oil lubricating and sealing device which comprises a lip-shaped sealing ring and a sealing base for clamping and fixing the lip-shaped sealing ring; the front cutting edge angle of the lip-shaped sealing ring is communicated with one end of a plunger sleeve by a pipeline; the rear cutting edge angle side of the lip-shaped sealing ring is communicated with the other end of the plunger sleeve by another pipeline; a plunger is sleeved in the plunger sleeve; and the outer peripheral wall of the plunger is in sliding contact with the inner peripheral wall of the plunger sleeve. The invention not only can regulate the oil pressure of an oil cavity at any time to enable the previous and later pressure difference of the lip-shaped sealing ring to be close to zero, but also can be implemented easily and can run reliably.