Borkhar plain along with adjacent foothills in the past formed a cultural-geographical area called Rustaq Borkhar. The existence of numerous and diverse buildings belonging to different Islamic periods, along with the indigenous and rural aspects of this building, has created suitable conditions for drawing the general appearance of the architectural arrays of a region as a separate geographical-cultural unit. Accordingly, and considering cases such as the destruction of many buildings and architectural arrays in the region after the author’ s studies and also the introduction of some new and unknown examples, in the present study, the architectural arrays of Dasht-e Borkhar buildings have been studied and considered. To this end, the present research used a analytic-comparative method based on the results of field studies and comparative comparisons. The results of this research showed that the decorations of the buildings of the region from the early centuries to the late Islamic centuries had various techniques and was continuous. These arrays include arrays of plaster, tile, brick, mud, wood, stone, limestone, murals and paintings on wood which were used in buildings such as mosques, tombs, Takayas, minarets, schools, inns, castles, houses, pigeon houses, baths, gardens, refrigerators, mills and palaces. Among the decorative techniques, gypsum arrays show the highest level of application and technical diversity. Outstanding and prolific decorations, mainly dedicated to religious buildings and buildings with trans-regional and public use such as caravanserais, and other buildings with local and private use have benefited from simple and low-work decorations. Due to the multiplicity and variety of works of the Qajar period, the variety and multiplicity of decorative techniques of the mentioned period compared to other periods, showed a high quantity.