This　paper　describes　the　method　of　direction　of　arrival　(DOA)　estimation　for　many　groups　of　coherent　and　uncorrelated　sources　under　mutual　couple　based　on　Toeplitz　matrix.　The　method　first　estimates　the　mutual　couple　parameter　of　the　linear　array,　and　compensates　the　array　date　using　the　mutual　couple　parameter.　Then,　the　method　decoherences　the　coherent　sources　by　using　Toeplitz　matrix.　Finally,　the　DOA　of　each　source　is　estimated　by　using　the　MUSIC　method.　Experimental　results　show　that　the　algorithm　is　effective　in　solving　the　influence　of　mutual　coupling,　avoiding　the　loss　of　array,　and　realizing　the　accurate　estimation　of　small　sources.