For　the　problem　that　the　sensitivity　of　the　piezoelectric　acceleration　sensor　increases　with　the　increase　of　temperature　in　a　high　temperature　environment,　a　sine-approximation　absolute　calibration　method　for　the　acceleration　sensor　is　proposed　and　a　related　experimental　system　is　built.The　sensitivity　measurement　and　calibration　test　of　the　high　temperature　resistant　acceleration　sensor　are　carried　out　by　the　mentioned　method　under　different　temperature　environments　from　room　temperature　to　400　℃.The　experimental　results　show　that　the　sensitivity　of　the　acceleration　sensor　shows　a　linear　increase　trend　when　the　ambient　temperature　rises.　©　2022,　Acta　Metrologica　Sinica　Press.　All　right　reserved.