A　sophisticated　meso-scale　model　is　developed　based　on　finite　element　method　to　study　the　tensile　failure　behavior　of　2D-SiCf/SiC.　To　this　end,　a　thoroughgoing　characterization　was　carried　out　using　SEM　and　micro-CT　to　obtain　the　microstructural　parameters,　and　a　progressive　damage　model　related　to　matrix　cracking　was　proposed　for　fiber　tows　to　depict　the　matrix　brittleness,　an　essential　feature　of　ceramic　matrix　composites.　Thereby,　a　sophisticated　model　comprehensively　incorporating　void　defects,　layer　shifts　and　the　damage　induced　by　matrix　cracking　was　established.　Elaborate　experimental　tests　including　digital　image　correlation,　acoustic　emission　(AE)　and　high-speed　observation　were　synthetically　conducted　to　validate　this　model,　and　results　indicated　that　this　model　could　provide　an　accurate　prediction.　Especially,　micro　and　meso-scale　damage　modes　were　identified　and　the　damage　process　was　thoroughly　analyzed　by　combing　this　model　and　AE　technology.　The　numerical　studies　were　then　implemented　to　evaluate　the　effect　of　stacking　mode　and　porosity.