Abstarct: Dust storms are hazardous events that makes air conditions very foul and causes low visibility. Iran is located in the Middle East and in semi-arid climatic regions. Although the dust storm often takes place in arid and semi-arid areas but it happens frequently in the recent years and could be highly related to natural and human activity effects. It is important to the detect point sources of dust storm and tracking its emission in the Middle East region. Therefore remote sensing techniques have been utilized in this investigation for dust sources determination and dust storm tracking, monitoring and mapping. Firstly, several dust detection parameters such as brightness temperature difference (BTD), normalized difference dust index (NDDI) and D parameter were calculated for 28 MODIS L1B images expanded in 2008 and 2009. These dust storm detection methods were evaluated by comparing these parameters and visibility data (41 stations) by fitting different functions (Linear and Exponential). D parameter was distinguished as the most effective technique for dust area detection. Then visibility maps generated on the basis of D parameter model and next these maps classified to different dust storm intensity. Also dust concentration maps were generated with empirical relationship baxsed on visibility maps. Dust sources can be identified using dust enhancement method. In this research, dust detection parameters (BTD, NDDI, D) have been utilized for false color composite (FCC) technique that enhances the dust over land effectively. The point sources were identified by visual interpretation of FCC maps. About 420 points were extracted from 28 MODIS images. This generated point sources map showed that about 39.2, 23, 14.5, 13.8, 5.7 and 3.8 of dust storm point sources have been located in the territory of Iraq, Syria, north of Saudi Arabia, west of Iran, Jordan and Turkey respectively. Also a density map of dust point source was generated by IDW interpolation technique and it proved that northwest of Iraq and east of Syria are the most important dust sources in the Middle East. Finally the path of dust particles from main sources toward Iran was determined by combination between satellite images of dusty period (July 4th to July 8th 2009) and its corresponding wind data (56 stations). The results demonstrated that the plume had been lifted from source (northwest of Iraq and east of Syria) and then moved toward the east direction and after arriving to Zagros Mountains its path changed toward south and then entered to central part of Iran from the down part of Zagros Mountains.