Ion mobility spectrometry-mass spectrometry library building method, recognition method and device

The invention provides an ion mobility spectrometry-mass spectrometry library building method which can be applied to the technical field of analytical chemistry. The ion mobility spectrometry-mass spectrometry library building method comprises the following steps: carrying out peak searching processing on preprocessed original data based on a first peak searching algorithm to obtain column peak information of a plurality of ion mobility spectrometry-mass spectrometry; based on a first preset sorting rule, sorting the multiple pieces of column peak information, and outputting a first sorting result after sorting; determining at least one sample characteristic peak from the first sorting result based on each retention time and a preset condition; based on a second preset sorting rule, carrying out second sorting on the first characteristic peak and the at least one sample characteristic peak to generate a second sorting result; and constructing a target spectrogram library according to each second sorting resu