Seismologists used ambient seismic noise records to study subsurface structures of the earth. In order to calculate the empirical green's function in this way, we need to correlate the noises of ambient seismic noise in specific windows. We processed vertical component recording of continuous data from BSRN, SHRT, TABS stations which are equipped with broadband sensor. We use 1 year (Jan. 2013-Jan. 2014) of recording at these stations which are operated by IIEES. Weighted root mean square (WRMS) stacking method was applied for all noise cross-correlation functions calculated for retrieving empirical green’s function from ambient seismic noise to extract Rayleigh wave dispersion curve and 1D shear wave velocity structure in South Khorasan region.