This　work　presents　an　omnidirectional　electromagnetic　acoustic　transducer　(EMAT)　for　generating　and　receiving　A(0)　mode　of　Lamb　waves　in　plate　structures.　The　proposed　EMAT　is　composed　of　a　spiral　meander　coil　(SMC)　and　a　new　concentric　permanent　magnet　pairs　with　opposite　polarity　(CPMP-OP)　for　enhancing　the　generation　and　detection　of　A(0)　mode.　A　finite　element　model　was　established　to　simulate　the　directions　of　the　static　magnetic　field　produced　by　the　permanent　magnets　and　the　incentive　process　of　guided　waves.　To　verify　the　performance　of　the　EMAT,　several　experiments　were　performed.　Firstly,　we　experimentally　verified　that　the　developed　EMAT　could　generate　and　receive　a　pure　single　A(0)　mode　omnidirectionally.　Then,　the　relationship　between　the　frequency　response　characteristic　of　the　developed　EMAT　and　the　interval　l　(the　distance　between　the　two　adjacent　annular　wires　of　the　SMC)　were　explored.　Furthermore,　the　circumferential　consistency　of　the　transducer　was　well　demonstrated.　Finally,　the　sensing　performance　of　the　developed　omnidirectional　A(0)　mode　EMAT　employing　a　CPMP-OP　was　compared　with　that　of　EMAT　with　different　structures　of　coils　and　permanent　magnets.　The　experimental　results　indicated　that　the　developed　omnidirectional　A(0)　mode　EMAT　employing　a　CPMP-OP　could　enhance　the　signals　of　the　A(0)　mode.