The　tele-transmitting　and　receiving　of　ECG　signal　is　the　key-problem　to　realize　the　tele-diagnosis　and　monitoring　of　ECG　signals.　A　dynamic　ECG　system　with　tele-transmitting　and　receiving　function　by　telephone　is　introduced,　and　it　consists　of　the　ECG　recorder　carried　by　patients,　the　ECG　receiver　used　in　hospital　and　the　PC　computer　used　to　analyze　ECG　signals.　The　principle　of　the　designed　system　is　described,　and　the　system　software　for　the　tele-receiving　and　analyzing　of　the　ECG　signals　is　introduced.　This　system　has　realized　tele-receiving　and　analyzing　of　ECG　based　on　conventional　dynamic　electrocardiogram.　©　2004　IEEE.