The invention is suitable for the technical field of geophysical engineering investigation, and provides a method and device for measuring the velocity of a shear wave of a surrounding stratum of a well hole, and terminal equipment. The method comprises the steps: determining the cut-off frequency of a filter based on the wave velocity range of the stratum and the radius of the well hole; carryingout the filtering of signals received by a plurality of different detectors based on the cut-off frequency, and obtaining a filtering result; calculating the arrival time difference between differentdetectors according to the filtering result; obtaining the velocity of a bending wave at a corresponding depth of target depth data based on the distance between different detectors and the arrival time difference between different detectors; and obtaining the real velocity of the shear wave of the stratum based on the velocity of the bending wave, the radius of the well hole and a front filtering method. The method achieves a purpose of measuring the real velocity of the shear wave through the in-hole activation of the bending wave, achieves the correction of a measurement error, caused by acondition that the bending wave is taken as the shear wave, in the prior art, avoids the bending wave frequency dispersion effect and errors caused by different radiuses of well holes, and is higherin use easiness, practicality and accuracy.