The invention relates to the technical field of data measurement and processing and provides a waveform display device and a historical waveform statistical method. The waveform display device comprises a first processing unit and a second processing unit, the first processing unit comprises a parameter measurement module, and the second processing unit comprises a historical measurement statistical module and a waveform display module. The parameter measurement module is used for measuring waveform parameters of waveform frame data to obtain the parameter measurement results; the historical measurement statistical module is used for obtaining and counting the parameter measurement results of the multiple waveform frame data located in the historical measurement range from the parameter measurement module so as to generate a statistical list; and the waveform display module is used for displaying the statistical list and calling and displaying the waveform of the to-be-viewed waveformframe data corresponding to a viewing instruction according to the viewing instruction. According to the technical scheme, the two processing units are combined, the operation processing speed can beincreased, meanwhile, the measurement results of the historical waveform parameters are viewed conveniently, abnormal data are also looked up conveniently and quickly, and the abnormal waveform is viewed.