Manichaean temple is located in the southern part of the settlement. According to Manichaean manuscripts, originating from the early medieval Taraz, Zhetisu was called as a country of Argu and a significant Manichaean community was there. This doctrine was originated in Babylonia in the III century BC. Teaching was widespread among the Turkic peoples in the VIII-XII centuries, especially among Uighurs. In addition to the manuscript, there is a number of artifacts, originating from the region of Taraz and related to Manichaeism. Kayalyk city in developed Middle Ages was on the border with the land of the Uighurs, who have embraced Islam. Until recently, the only one Manichaean temple was preserved in China.
Manichaean temple was investigated on Kayalyk settlement. It was built of mud brick, which had whitewashed and plastered walls, preserved to a height of 60 cm. Dimensions of the entire structure is 15x11 m, the interior – 11,2x8,4 m. The annex of aivan form is allocated prior to entering into the rectangular space. The altar was oriented to the west, which coincides with the traditional orientation of the Manichean structures. Cult construction, related to the upper cultural layer, burned at the citywide fire. Artifacts were found in conducting research and analysis of debris, they also point to the departure of the Manichean religion.