The　accuracy　of　damage　localization,　especially　the　accurate　determination　of　the　time　arrival　difference,　is　important　in　the　field　of　acoustic　emission　(AE)　source　localization.　In　this　paper,　we　propose　a　new　approach　to　localize　an　AE　source　with　the　dispersive　A(0)　mode.　For　this　approach,　we　analyzed　the　cross　correlation　of　AE　signals　with　a　reference　database　and　determined　the　time　lag　of　A(0)　mode.　The　technique　is　carried　out　in　a　two　stage　computational　process.　First,　AE　signals　are　used　to　construct　the　reference　database　and　compensate　for　the　dispersion　of　waves　based　on　the　time　reversal　principle.　Second,　the　time　arrival　difference　of　the　A(0)　mode　is　determined　by　the　cross　correlation　of　AE　signals　with　the　reference　signals　using　the　first　threshold-crossing　technique.　A　localization　algorithm　is　carried　out　based　on　the　triangulation　technique.　The　proposed　approach　is　conducted　on　a　steel　plate　with　three　AE　sensors　coupling　on　the　surface.　Pencil-lead　breaks　are　adopted　to　simulate　AE　sources.　Results　indicated　that　eight　verification　points　were　successfully　localized　with　the　maximum　and　minimum　relative　errors　of　0.98%　and　0.58%,　respectively.　Thus,　this　paper　shows　an　optional　technique　to　localize　AE　sources　with　the　A(0)　mode,　which　is　of　significant　importance.