The crustal structure study based on ambient noise processing is become popular and reliable technique in seismology in recent years. In present study, we apply ambient noise analysis to image the crust and uppermost mantle shear velocity structure beneath south west of Tehran area. Data from all stations that have been employed in Alborz and central zones by Institute of Geophysics-University of Tehran (IGUT) and International Institute of Earthquake Engineering and Seismology (IIEES) were used in this study. These data were recorded during 2013 to 2015. After receiving the continuous waveforms, we preprocessed and segmented the data into one hour time windows. Hourly cross correlation of ambient noise between all station pairs were calculated and group velocity of Rayleigh waves dispersion curve in periods between three to ten seconds are measured from the Green’s function resulting cross correlations. To determine dispersion curves of surface waves we have used the Frequency-Time Analysis technique (FTAN). Because of our new Gaussian noise selection proposed method; all Green functions had acceptable SNR ratio and greater than 10. Then using dispersion map in each period, we extracted a local dispersion curve for each grid point. Finally, local dispersion curves for 7 grid points exactly coincide with ILPA station locations were extracted by means of Shapiro et al., (2005) technique. The results of this research indicate a reliable image from upper crust of south east of Tehran region in consistent with the results of Javan-Doloei and Roberts (2003) from teleseismic P-waveform time domain receiver function (RF) method. Moreover, the upper crustal structural model proposed for this area is agreement with surface geological setting.