Abstract:Based on teleseismic SKS waveform data recorded from January 2012 to July 2014 at 23 broad-band seismic network stations of Heilongjiang province, we use Splitlab software to study the shear wave splitting in the region. The delay times between fast and slow wave arrival at each station are determined using both the minimum energy and waveform rotation-correlation method and the minimum feature value method. We calculate the SKS fast wave polarization direction and the fast and slow wave delay time for all observation stations, and acquire the image of upper mantle anisotropy in Heilongjiang region. The results show that the Heilongjiang regional upper mantle seismic anisotropy is more obvious and the fast wave polarization direction and principal tensile stress direction are basically consistent. Furthermore, as obtained by the GPS velocity field in the same direction, the coupling of the crust and upper mantle in the region present vertical coherence.