In this study, the reasons causes problems in thestructural systems of the historical Diyarbakir’sChurches which is located in the old town andsurrounded by the world famous walls wereobserved in terms of architecture, constructiontechnics, structural materials.Although publishs indicated existence of twentytwo churches in the past only eight of themcompletely or partially reached today. Two inSouth West, two in South East, third in North Estand one available in citadel. In spite of limitedpopulation of Christians, three of churches arestill active.This study that was started in March 2014. Theproblems of structural systems of these churcheswere periodically photographed and specificdamage identity of them were created.Five churches has damaged in different levelsbecause of different reason including during fourmonths. Post December 2015 damages in thebuildings were also generally presented.Any important damage was not observed in thestructural system of Surp Giragos ArmenianChurch that is restored and opened for worshipin 2012. However, small damages such as glassbreakages, small debris were observed in thesouthern face of the building after the conflict.Axis shift, opening, separation and dissolutionobserved in Saint George (Kara Papaz) Churchdepend on faulty restoration. Structural systemproblems had been continued in this church.Separation, dissolution, loss of fees, axis shiftand joint discharge depend on restoration andrestoration was observed in the Latin Churchwhich located a part of Suleyman Nazif PrimarySchool. However, multi-purpose hall of thechurch that is called as “Naos” had beenconverted to concrete.Worship part of Mar Petyum Keldani Catholic Churchwas repaired simply by the community. Carrier systemof the patriarchate and housing part has been quitedamaged. The rest of structural elements were alsoaffected by ambient conditions in the intermediate andupper floor of the patriarchate (Located in east part of the Church) which completely destroyed. Materialloss, joint release and track breaks were observed inthese parts which open to the outside environment.This church also affected from the conflict statedabove. Therefore, all shops located in the southernfront were demolished and internal main gate andfountain were partially destroyed. However, thechurch has been maintained its structural integrity.Armenian Catholic Church located in the southeastpart was restored in 2007 and significantly destroyedin the process of December 2015 and March 2016.Axis shift, disintegration and dissolution walls,damage due to loss of structural elements had beenidentified before December 2015 and March 2016.The building is out of service. Hence the necessaryrestoration was started.Meryem Ana (Mar Yakup) located in the southeastpart is a Syriac Church which has exist by simplerepair realized by the community. Cracks thought tobe due to ground subsidence were observed in thedome of the building and the superstructure of thenarthex was converted to concrete. This overload hasbeen caused to axis shift in the column, the jointdischarge of the walls, mortar loss.However, Moisture-induced damage, dissolutionon the walls, concrete overload in the top coverand irregularities originated form faultyrestoration and using are some of the problemsobserved in this building.Protestan Church is a building which all the walls andtop cover converted to concrete plaster and restoredin 2008. But it is used for other purposes now.Surp Sargis Armenian Church is one of the mostdamaged churches. Top cover of church’s naoscompletely destroyed. Axis shifts, belt separation anddissolution were observed in the naos part. However,all floors in the narthex were destroyed and damageoccurs in the associated walls. Because of the churchusing as “Rice Factory” briquettes were used to closebetween columns and thus damage in the structuralsystem of this building has been accelerated.Top cover of all the part of the church except apsedestroyed and therefore it was left vulnerable tonatural conditions.Damages sourced from the problems in the structuralsystem of the churches that need restoration orrestored improperly are generally the same. But theycan show some differences depend on position andstatus. Nevertheless, damages level of each churcheswere evaluated and observed separately