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The accurate extraction of instantaneous parameters of seismic signals is of great significance for the study of the lithology structure, oil and gas reservoirs, etc. For the method of extracting the instantaneous parameters by traditional transform, the method is sensitive to noise and the accuracy is not accurate enough. In this paper,Synchrosqueezing Wavelet Transform to extract the instantaneous parameters of seismic signal.This method is a continuous and reversible time-frequency transform tool, first of all, combined with the idea of time-frequency rearrangement, the value of the squeezed wavelet transform is obtained, and then the corresponding analysis of real signal Signal and finally obtain the instantaneous parameters.The simulation signal experiment and the application of the actual seismic data show that compared with the traditional Hilbert transform method, the instantaneous parameters extracted by this method are more robust to noise, with higher accuracy and less error, especially For instantaneous frequency extraction.