Discussed the visualization of the ECG signal based on the variable value measurement system,and made a comparison between the routine ECG and the ECG scatter point map for the diagnosis of P wave anomalies of ECG signals.Using the actual data to compare the normal and abnormal ECG data.Comparison method with variable visual ECG characteristic analysis method,the change in the value of the visual characteristics of ECG signal analysis method,the one-dimensional continuous ECG P wave into four primitive of pseudo genes discrete signal,and subsection measurement visualization map mapping and visualization of the results of observation and research.