The invention relates to a collaborative awareness laparoscopic surgery constant-pressure support system and an implementation method thereof, on the basis of an ultrasonic knife with an attraction function, real-time pressure of an abdominal cavity is automatically aware, the size of an air inlet valve is dynamically adjusted according to a standard set value, dynamic air supply is realized, andabdominal cavity pressure balance in the surgery process is achieved; a historical database is used for calculating and recording the optimal air pressure of patients with different disease types (stomach cancer and colorectal cancer), disease periods, genders, ages, body conditions and weights (BMI) in the actual operation process, the air pressure actually needed by the operation is accurately set, the system has a guiding significance more generally, and doctors with less operation experience are helped to set the reasonable abdominal cavity air pressure; a big data clustering analysis technology is applied to continuously optimize the data, so that a better effect is achieved; influence on the existing operation system is small, and the compatibility and the usability are high; the laparoscopic surgery efficiency and effect can be improved, the pain and postoperative complications of the patient are reduced, and the operation burden of the doctor is relieved.