On November 17, 2017 at 21:48 (local time), a devastating earthquake of Mw =7.3 occurred at (34.91ºN, 45.96ºE), near Ezgele City in Kermansha province, Iran. The earthquake shake large areas in west and north-west of Iran, and east of Iraq. Meanwhile, the damaged areas were focused near the causative fault located in south-west of Iran. The ground motion distribution in the area show large dependence to the rupture parameters including rupture direction, slip direction and pattern, slip velocity etc. The recorded ground motion in Sarepole-Zahab City shows a long-period pulse resulted the largest PGA of 0.67g in the area. In this paper, source model of 2017 Sarepole-Zahab earthquake was investigated using reverse analysis of near-source ground motions, and examined its relation with observed damaged in the area.