The　reconstruction　of　the　profile　curve　of　damaged　parts　in　the　absence　of　an　original　technical　drawing　is　an　important　process　of　part　repair.　Part　damages　are　complicated　and　changeable.　To　reduce　the　material　removal　rate　during　repair　and　maintain　a　smooth　and　flawless　profile　curve　after　being　repaired,　a　smoothing　and　reconstruction　strategy　using　a　laser　displacement　sensor　to　measure　the　profile　curve　was　proposed　in　this　study.　This　strategy　established　an　adaptive　measurement　mechanism　by　building　an　automatic　measurement　motion　platform.　A　staged　repair　and　smoothing　strategy　of　the　profile　curve　measurement　data　was　constructed　on　the　basis　of　the　locally　weighted　scatterplot　smooth.　A　calculation　model　of　a　part　repair　processing　curve　was　built　by　using　the　Akima　interpolation.　Moreover,　a　case　study　was　conducted　to　verify　the　reconstruction　accuracy　of　the　strategy　and　smoothness　of　the　reconstruction　curve.　Results　demonstrate　that　the　automatic　measurement　motion　platform　and　adaptive　measurement　mechanism　can　realize　an　adaptive　measurement　of　different　profile　structural　shapes.　The　staged　repair　and　smoothing　strategy　can　repair　the　measurement　error　of　profile　curve　measurement　data,　profile　defects,　and　other　abnormal　data　while　maintaining　the　smoothness　of　the　profile　curve.　After　repair,　the　variation　range　in　the　measurement　data　error　at　different　points　of　the　profile　curve　decrease　from　(-1.4913,　+0.0351)　to　(-0.3511,　+0.3715).　Akima　interpolation　can　not　only　increase　the　maximum　error　of　the　processing　curve　but　also　decrease　the　material　removal　rate　effectively　and　protect　the　smoothness　of　the　profile　curve.　This　study　provides　important　guidance　to　increase　the　part　repair　efficiency　and　accuracy　and　realize　the　automatization　of　part　repair.　©　2018　Eastern　Macedonia　and　Thrace　Institute　of　Technology.