The invention discloses a rotary seal oil distributor. The rotary seal oil distributor comprises a rotating ring which fixedly and externally sleeves a rotating spindle at least along the circumferential direction and a stationary ring component which externally sleeves the rotating ring at intervals. The rotating ring is provided with an oil passage I for communicating with an oil inlet in the outer circle of the rotating spindle. The stationary ring component is provided with an oil passage II communicated with the oil passage I. An end-face sealing gap I is formed along the axial direction between the rotating ring and the stationary ring component. The end-face sealing gap I is formed by both end-faces of the rotating ring, and the width of the end-face sealing gap I is reasonably set to ensure that the rotating ring relative to the stationary ring component can smoothly rotate and seal at intervals. Meanwhile, centrifugal seal can be formed because the direction of the centrifugal force is opposite to the flow direction of the hydraulic oil. The higher the rotating speed, the better the sealing effect, therefore the rotary seal oil distributor is suitable for oil distribution in high rotating speed. The sealing surface is flat and easy to process and repair. The performance of the sealing line is independent of the length of the oil distributor to ensure that the entire structure is compact.