In this research, we examined SK(K)S phases from over 122 earthquakes (MW ≥ 6.0 and epicentral distance between 90 – 145 Degree) occurring between years 2010 and 2017 those recorded on 7 broadband stations by Iranian seismological center network. Shear-wave splitting technic, transverse component minimization method which introduced by Silver and Chan (1991), is used. All waveforms were band-pass filtered to retain energy between 0.05 to 0.2 Hz. In compressional tectonic regimes such as the Zagros belt, we expect a pure shear deformation in the mantle that could develop lattice preferred orientation (and anisotropic directions) subparallel to the strike of the belt. But our findings show that the majority of the fast axes are oriented north-east to south-west direction. By looking at the strength of anisotropy results obtained by modeling with one layer ground assumption, 1 to 1.6 seconds for most of the stations is measured. In this case, any crustal contribution should be superposed over the mantle contribution.