Based　on　transversely　isotropic　theory,　a　finite　element　model　for　three-dimensional　solid-liquid　coupling　defect　repair　of　articular　cartilage　was　established.　By　studying　stress　state　of　host　cartilage　near　the　restoration　interface,　we　identified　deformation　type　of　cartilage　and　discussed　the　cause　of　restoration　interface　cracking.　The　results　showed　that　the　host　cartilage　surface　node　near　the　restoration　interface　underwent　compression　deformation　in　the　condition　of　surface　layer　defect　repair.　When　the　middle　layer,　deep　layer　or　full-thickness　defect　were　repaired,　the　node　underwent　tensile　deformation.　At　this　point,　the　radial　dimension　of　cartilage　increased,　which　might　cause　restoration　interface　cracking.　If　elastic　modulus　of　the　tissue　engineered　cartilage　(TEC)　was　lower　(0.1　MPa,　0.3　MPa),　the　host　cartilage　surface　layer　and　middle　layer　mainly　underwent　tensile　deformation.　While　elastic　modulus　of　TEC　was　higher　(0.6　MPa,　0.9　MPa),　each　layer　of　host　cartilage　underwent　compression　deformation.　Therefore,　the　elastic　modulus　of　TEC　could　be　increased　properly　for　full-thickness　defect　repair.　This　article　provides　a　new　idea　for　evaluating　the　effect　of　cartilage　tissue　engineering　repair,　and　has　a　certain　guiding　significance　for　clinical　practice.　Copyright　©　2018　by　Editorial　Office　of　Journal　of　Biomedical　Engineering.