---

Bibi Doost hills series around Bonjar city of the central part of Zabol city in the north of Sistan and Baluchestan province along the Niatak Duct in a north-south direction. These series of hills due to its Massive volume of cultural materials, especially pottery samples and the proximity to the Zahedan Kohne site the second government of Sistan in the Islamic era it is of special importance in the Studies of Archaeology and History of Sistan, Accordingly with the issuance of a license from the Archaeological Research Institute in 2016, speculation to determine the area and privacy done. In this study 877 pieces of pottery related to the Islamic era were identified, recorded and studied. Examples mentioned in four groups: Simple unglazed pottery, no engraved glaze, Simple glazed and Glazed engraved were located. in this research an attempt was made to start Study ancient sources And Archaeological Researches The Real Identity of Bibi Doost Hills in the North of Zahedan Kohne Then, the samples of pottery collected from the level of Bibi Doost hills should be applied to: their typology and relative dating. The results of the studies indicate that it is important that the Bibi Doost hills are part of the second capital of Sistan due to its location in the area of Zahedan Kohne. And the results of the study conducted on its pottery also informs about the technique of making high quality pottery in the Islamic era, in the north of Sistan plain. The results of the studies also clearly show the cultural connection of this region with the Baluchistan basins of Iran and Afghanistan, Greater Khorasan, Kerman, Central Plateau and parts of Central Asia. The present study intends to provide a ground for illuminating a part of the Islamic era of Sistan by conducting a scientific and methodical study.