The invention discloses an intelligent CNC spring machine used for processing extension springs, compression springs, torsion springs, spiral springs and the like. The intelligent CNC spring machine comprises a straightening mechanism, a wire feeding mechanism, a pitch mechanism, a core seat mechanism, a knife seat mechanism and a computer control system. The pitch mechanism comprises a pitch servo motor and a pitch ball screw pair driving a pitch shaft to move; the core seat mechanism comprises a core seat lifting mechanism and a core rod core-pulling mechanism; and the knife seat mechanism comprises a plurality of sliding knife seats and knife seat driving mechanisms and can move along an arc-shaped track in a radial direction. The spring machine is provided with five sections includinga straightening section, a wire feeding section, a pitch section, a core seat section and a knife seat section according to the principle of spring formation, and has reasonable structure design and is driven by a full servo and controlled by a computer so as to realize fully closed loop control and be capable of reducing the rejection rate of finished products. The intelligent CNC spring machinecan be widely applied to the production of various extension springs, compression springs, torsion springs, spiral springs and the like, with simple operation, high processing precision and high production efficiency.