An automatic air pressure management system for monitoring pressure within a patient with an air catheter is disclosed. The system comprises a control assembly configured to activate a pump mechanism to evacuate air from a common air passage with a first valve being closed and a second valve being open； close the second valve so as to isolate a pressure transducer and an air catheter connection mechanism； open said first valve to inject air into a common air passage； close said first valve； and open said second valve to inject air to an air catheter attached to said air catheter connection mechanism to achieve a predetermined pressure.
