The invention provides an AMW-SST time frequency analysis method for an ENPEMF signal. The method comprises the steps that unit data is established, and a wavelet type is stored in the unit data to serve as alternative wavelets used for ENPEMF signal processing; CM values of the wavelet type are stored; the wavelets are screened according to the CM values to obtain a mother wavelet for ENPEMF signal processing; and the mother wavelet is used to perform SST processing on a to-be-processed ENPEMF signal to obtain a time frequency analysis result of the to-be-processed ENPEMF signal. According tothe method, the optimal mother wavelet is adaptively selected by calculating the CM values of the wavelets, and finally output with high sharpening effects at a time axis and a frequency axis simultaneously is obtained in combination with an SST algorithm, so that the time frequency effect is clearer, and the aggregation degree and readability of a time frequency graph are improved.