The invention discloses an N-type female head radio frequency coaxial connector which is composed of an outer conductor, an inner conductor, an insulating medium, a supporting medium, a pressing ring, a C-shaped clamping ring wire clamp, a first waterproof ring, a second waterproof ring and a rear swivel nut. The inner conductor is located in the outer conductor. The insulating medium is located between the outer conductor and the inner conductor. The supporting medium, the pressing ring and the C-shaped clamping ring wire clamp are located on the inner side of the outer conductor. The first waterproof ring is located between the outer conductor and the rear swivel nut. The second waterproof ring is located in the rear swivel nut. According to the connector, the structural size is reduced, cost is reduced, occupied space is small, and the connector is beneficial for being installed in narrow space.