Laser　forming　is　a　promising　technology　to　deform　the　work　pieces　by　thermal　stress　caused　by　laser　irradiations.　Up　to　date,　considerable　investigations　have　been　carried　out　to　clarify　the　process,　however,　much　attention　has　been　focused　on　monolithic　alloys　and　relatively　less　work　has　been　done　on　the　MMCs.　In　the　present　study,　interface　debonding　of　MMCs　in　laser　forming　was　experimentally　and　numerically　investigated.　A　microstructure　integrated　3D　FEM　was　developed　to　simulate　the　deformation　behavior　of　MMCs　in　laser　forming.　And　a　periodic　multi-particle　cell　model　was　firstly　used　to　determine　the　damage　evolution　under　uniaxial　tensile　loading,　where　the　onset　of　damage　was　assumed　to　follow　a　maximum　normal　stress　criterion.　The　damage　evolution　of　the　MMCs　was　subsequently　coupled　to　the　numerical　model　to　calculate　the　deformation　behavior　of　the　composite　in　laser　forming.　It　was　found　that　the　simulated　results　were　in　reasonable　good　agreement　with　the　experimental　data.　And　some　significant　findings　were　discussed　in　the　paper.