Thin-walled　parts　have　low　stiffness　characteristic.　Initial　residual　stress　of　thin-walled　blanks　is　an　important　influence　factor　on　machining　stability.　The　present　work　is　to　verify　the　feasibility　of　an　initial　residual　stress　measurement　of　layer　removal　method.　According　to　initial　residual　stress　experiment　for　casting　ZL205A　aluminum　alloy　tapered　thin-walled　blank　by　a　common　method,　namely　hole-drilling　method,　three　finite　element　models　with　initial　residual　stress　are　established　to　simulate　the　layer　removal　method　in　ABAQUS　and　ANSYS　software.　By　analyzing　the　results　of　simulation　and　experiments,　the　cutting　residual　stress　inlayer　removal　process　has　a　significant　effect　on　measurement　results.　Reducing　cutting　residual　stress　is　helpful　to　improve　accuracy　of　layer　removal　method.　Copyright　©　by　HIGH　TECHNOLOGY　LETTERS　PRESS.