The purpose of this research is to investigate and analyze the Umayyad desert castles that are located in Jordan between Amman and Azraq. It was historically considered as a connecter of the caravanserais that were going between Damascus, Baghdad and Hijaz. Qaser al Kharanah is considered as a significant architectural monument that represents an important period of the Umayyad civilization. This castle is now deteriorated because of two reasons, weather conditions and lack of established strategy of conservation. The Department of the Antiquity started doing some restoration jobs that were not based on scientific bases which causes more damage and deterioration. This research is representing a new methodology for conservation. The results indicate that this strategy is appropriate and will be helpful to present this monument and could be applied in other historical sites.