Abstract: The recording and analyzing ECG is able to measure and interpret ECG data, which is convenient for doctors' subsequent medical diagnosis, so in recent years it has rapid development. This ECG must implement YY 1139-2013 Diagnostic electrocardiographic devices standard, and YY 0782-2010 Medical electrical equipment-Part 2-51:Particular requirements for safety, including essential performance, of recording and analyzing single channel and multichannel of electrocardiographs standard. The two standards have links and differences. By analyzing, comparing, inducing two standards, this article sums up the links and differences of the two standards, describes the differences of the two standards between macro and micro point of views in detail, helps ECG testing personnel to deepen the understanding of the standard terms, and improve the detection efficiency of ECG.