The invention provides a method for performing qualitative analysis method on a silane coupling agent in rubber. The method comprises the following steps: S1, preparing a standard product of the silane coupling agent: accurately preparing various kinds of silane coupling agent standard of 100 mug/kg, diluting according to the amount of 16 times of the silane coupling agent and preparing standard liquid to obtain first to-be-tested liquid; S2, weighing a sample, pulverizing, adding an organic solvent and performing Soxhlet extraction to obtain second to-be-tested liquid; and S3, detecting the second to-be-tested liquid by a gas chromatography-mass spectrum method and comparing a standard curve to obtain qualitative analysis of the silane coupling agent in the rubber.