CCAR Part 25 presents a requirement for aero engine continued rotation which states that the continued rotation of aeroengine could not jeopardize the safety of the airplane. Based on the requirement of 25.903(c) and compared with 33.74 and 33.92, airworthiness requirements to aero engine continued rotation were analyzed from contents, background, amendments and technology. Method of compliance demonstration for continued rotation is analyzed from engine certification and airplane certification. The result shows the paper can provide a reference for industry to understand the regulation, and support for the type certification of CAAC.