This　paper　proposes　multisource　direction-of-arrival　(DOA)　estimation　using　the　correlation　between　angles　of　adjacent　time-frequency　(TF)　points　for　a　first-order　ambisonics　sensor　array.　For　a　TF　point　in　the　recorded　signal,　we　define　the　adjacent　TF　points　whose　angles　are　close　to　that　of　this　point　as　angle-correlation-points　(ACPs),　and　then　explore　the　relation　between　the　probability　that　this　point　is　an　SSP　and　the　number　of　ACPs.　We　found　that　there　is　a　positive　correlation　between　the　number　of　ACPs　and　the　probability　that　a　point　is　an　SSP.　Hence,　single-source　point　(SSP)　detection　is　proposed　using　the　angle　correlation　between　adjacent　TF　points.　In　addition,　two-dimensional　weight　kernel　density　estimation　is　designed　to　estimate　the　probability　density　of　angles　of　detected　SSPs.　Finally,　peak　search　is　adopted　for　DOA　estimation.　Experiments　in　simulated　and　real　environments　show　that　the　DOA　estimation　performance　of　the　proposed　method　exceeds　that　of　some　existing　methods.　　©　2017　IEEE.