In　this　paper,　a　code　of　finite　element　method　is　developed　for　numerical　simulation　of　electromagnetic　acoustic　testing　(EMAT)　signals.　In　order　to　improve　the　simulation　efficiency　of　ultrasonic　field,　a　new　explicit　integration　algorithm　of　time　domain　is　introduced　in　the　simulation　code.　As　an　extending　application　of　EMAT　to　the　quality　control　of　Thermal　Barrier　Coating　(TBC),　the　feasibility　of　an　EMAT　transducer,　which　is　proposed　for　detecting　delaminating　defect　in　TBC,　is　investigated　by　using　the　new　code.