To　help　people　complete　their　music　composing,　and　simplifying　composing　procedures　and　recording　associate　information　quickly,　a　music　detecting　and　recording　system　based　on　support　vector　machine　(SVM)　is　proposed　in　this　paper　through　the　research　about　pattern　recognition　applied　in　music　tune　detection.　The　main　processes　of　the　music　recording　system　is　that　the　system　will　detect　tune　by　Sound　Sensor　and　change　it　into　digital　signals,　then　analysis　and　divide　the　signal　into　7　parts　by　SVM　algorithm　and　record　it　in　files,　it　also　show　the　pitch　for　each　note　on　LCD　display　at　the　same　time.　At　the　end　of　tune,　the　result　will　be　outputted　as　a　simple　numbered　musical　notation　in　file.　Compared　with　the　traditional　music　recognition　system,　the　results　show　that　SVM　has　good　robustness　to　noise　data,　can　effectively　identify　all　kinds　of　music,　and　the　recognition　speed　of　music　is　better.　In　the　practical　application,　our　system　can　realize　continuous　data　detection.　In　addition,　it　has　strong　anti-jamming　performance.　©　2019　IEEE.