Hajilerchai region is located in Varzeqan city of East Azerbaijan province, Iran. Archaeological surveys of the area were conducted to clarify the settlement landscape of the area. A total of thirty sites were identified in the area. There are two bronze age sites identified by means of an archaeological surface survey in the region. Hajilarchai area of Varzeqan is one of the lesser-known parts, about which archeological research has not been done so far. This study was first conducted by field research. Then, using the GIS maps, the exact landscape of the area was determined, and the settlement patterns were explained. In this study, in addition to general characteristics and pathology, each site was introduced separately, presenting the area's settlement pattern. With a descriptive-analytical approach, this research tried to answer how the settlement patterns have changed in different historical periods. With the beginning of the historical and Islamic period, especially the Parthian period, the region has enjoyed certain prosperity and development. This study showed that most of the ancient sites along the Hajilerchai River are located at the tributaries of the Aras River, and environmental conditions and proximity to the river have played an essential role in establishing settlements.