The vast country of Iran has always been of interest to trade caravans due to its strategic importance and its location on the Silk Road as a vital and economic highway. The purpose of this research is to examine the characteristics of Qajar period caravanserais. The research method in this research is field-historical and analytical. Thus, first, historical studies were conducted, especially in travelogues, in order to obtain communication routes and intermediate houses of that era. Then, the field study was combined with information obtained from written sources, and the aforementioned settlements and historical studies analyzed the architectural and structural factors of the works. The caravanserais, as a place for merchants and traders, played a significant role in establishing trade relations. Caravansers were built in most historical periods of Iran. Although trade relations with different countries were resumed during the Qajar period, they never reached the level of previous trade relations. During this period, a number of caravanserais were built, but due to the haste in their construction and the use of poor-quality materials, especially brick, most of these buildings have been largely destroyed or completely demolished today. This research aims to examine the common features of these caravanserais by examining the Qajar period caravanserais and their architectural and structural features.