Abstract: The term "integrity" has been used as a quality characteristic of main aircraftequipment in the past two decades. It was applied to aircraft structures first, and then toengine structures and avionics.On the basis of this fact, the author is putting forward the term"aircraft equipment integrity". Both UsAF's aircraft structural integrity program and enginestructural integrity program use durability and damage tolerance design as the integrity technique,while USAF's avionics integrity program （AVIP） uses eight- main integrity techniques in designphase, namely: piece parts selection, parts derating, parts burn-in, environmental stress screen,failure prediction analysis, computer aided design, testability and design reviews.These integritytechniques for aircraft structures, engine structures and avionics are briefly described in thispaper.