In this study, in order to determine the attenuation structure, the waveforms of earthquakes occurred in the north and northwest of the Iranian Plateau and were recorded by stations belonging to the ISC and IIEES networks between 2010 and 2016. At first, the quality factor of coda waves was estimated by the Single-Back Scattering method then the two-dimensional attenuation distribution of the coda-waves was estimated in 9 frequency bands with central frequencies of 0.1 to 16 Hz. The results of tomography showed that the Sahand and Damavand volcanic regions, North of Tabriz fault zone and Northwest of Zagros are among the areas with high attenuation compared to other regions. Also, the results show that the eastern Alborz is more attenuated than the western Alborz, which is consistent with the high seismicity of the eastern Alborz compared to the western Alborz. The lower attenuation is related to the Sanandaj-Sirjan Zone (SSZ) which is in good agreement with lower seismicity of this area.