The present invention discloses a web-based aircraft engine integrity and usage status monitoring system and method. The system includes an airborne unit and a ground unit; the airborne unit includes a data acquisition system and an airborne management unit; the ground unit comprises a ground health management system; and the data acquisition system includes a data processing module and a sensor node. The fault on-line diagnosis and potential fault prediction of aircraft engine health statuses are realized through the airborne unit and the ground unit. The airborne unit monitors engine use status parameters in real time, performs timely and on-line diagnosis on the status parameters, determines a fault level and generates a maintenance recommendation report; and a ground health management system server is built through using web technologies, a pre-judgment mechanism and aircraft engine status parameter information are used in combination to predict aircraft engine potential fault information. The web-based aircraft engine integrity and usage status monitoring system and method of the invention play an important role in providing perfect health management services, ensuring aircraft flight safety, improving engine reliability and reducing engine maintenance cost, and can realize an on-condition maintenance guarantee mode.