The invention relates to a gas phase chromatography workstation data processing method and a processing system. The processing method is characterized by comprising the following steps of inputting a control command, receiving and decoding the input control command, and comparing the input control command with the preset and stored control command so as to obtain the decoded control command; receiving and performing the decoded control command, retrieving storage data in a data storage unit of a gas phase chromatography workstation according to the control command, and analyzing, arranging and calculating; outputting data processing results, including displaying query results, exporting query data, and displaying the formed data change curve and calculated gas generation rate and three-ratio. Therefore the classified query and the data export are realized, and a data change curve graph is built, and the detection of oil-filled electrical equipment is realized by analysis and judgment of the calculated gas generation rate and three-ratio, so that the data analysis judgment and archiving are facilitated so as to improve the management level of chromatographic analysis, and the latent failure of the oil-filled electrical equipment is timely found and timely solved.