The invention belongs to door closers and in particular relates to an air pressure internal circulation type automatic compensation control door closer, comprising a cylinder block and an expansion link. The other end of the cylinder block is provided with a one-way inlet valve device which can carry out one-way inlet to the cavity inside the cylinder block when the door is opened. The end of the expansion link inside the cylinder block is connected with a regulating valve device which ensures the air in the cylinder block can circularly flow in the cavity of the cylinder block when the expansion link is in the motion state. An inner cap sealing device is fixed inside an end cap. A large compression spring is arranged in the cavity between the inner cap sealing device and the regulating valve device. The cavity in the cylinder block is divided into two air cavities capable of automatic compression and automatic compensation by the inner cap sealing device, the regulating valve device and the inlet valve device. When the door is opened or closed, the air inside the cavity in the cylinder block circularly flows in the two air cavities. The air control type door closer ensures the air circularly flows in the cylinder block basically, thus reducing the contamination of the dust in the air continuously entering and exiting to the lubricant in the cylinder wall and ensuring the lubricating effect of the lubricant so that the door closer can work normally and the service life of the door closer can be effectively lengthened. In addition, the door closer has good damping effect and low noise when closing the door.