​  ​   The city of Otrar consists of parts of Kuhendiza (citadels), Medina (Shahristan) and Rabad, as well as other cities located in Central Asia and other regions of Kazakhstan. During this time, four rows of fortifications were built in Otrar at each stage. The remnants of the two outer walls surrounding the Rabad part of the city were preserved only in the north-west and west of the city. 
     The Shahristan part of Otrar is planned to be preserved in the form of a pentagonal roof. In general, Shahristan, which is the main part of the city, is surrounded by a very strong fortress. Today, the south-western part of the Shahristan wall is fully open and turned into a museum under the open sky. 
      In general, as a result of research of the defense systems of the city, the remnants of the fortified walls were found at each stage.   
       VIII- IX centuries. The wall is made of perfume, between which are regularly laid bricks. The internal part is made of brick with a thickness of 0.4 m. Remove the "dress" or "berma" with a thickness of 0.7 m made of pure cotton. Considering that the walls of the city are usually built or repaired at the same time, the wall, found in the upper northern part, was also built in the VIII-IX centuries mentions. 
       VIII-IX centuries behind the wall X in. A new wall was built and the reinforcement was strengthened. During Karakhanidov's time, the walls could have been repaired. During the renovation, a block was laid over the pahsoi, the space between the two walls was filled with loose soil, significantly expanding the area of ​the fortress. 
       Fortress XIII century. After the initial demolition, the walls did not recover, as in the city. 
      There is another indirect testimony that the walls of Shahristan were destroyed. XIII century in the end XIV c. Initially, they began to restore the city walls and towers. If insignificant damage will be eliminated, then it will be removed from the east side, even on the new, old wall. An analogous new wall was found in the north-western part of the city. The north-eastern and north-western walls of the city date back to the XIV century. At the beginning of the IX-XI centuries it was completely destroyed. built on the site of the Karakhanid wall. City walls of the XIII century. at the end of XIV c. Initially, in connection with the change in the political situation in the Mongolian tribes, it was again necessary to raise the need for defense. Thus, archeological excavations do not refute the written data, but complement them. 
      Urban walls erected at the beginning of the XIV century stood until the end of the XVI century. This was the last wall of Otrar. Then, as a wall, the walls of the house began to appear.