The city of Mula (Region of Murcia, Spain), still retains important canvases of the medieval wall of the three enclosures (Alcazaba, Albacar and Medina) that shaped the urban layout from the twelfth century (Muslim domain), until the end of the fifteenth century (Christian Reconquest). Currently, the Albacar site is the most complete. On the Islamic Alcazaba was built, in the sixteenth century, the Castle and the wall of the Medina, only a few sections remain. Until now, the medieval wall was a great unknown. The historical landmark of the city has always been the castle. The communication focuses on exposing the exhaustive historical analysis, material, constructive and the state of conservation carried out of the medieval wall of Mula and, especially, of Albacar (the best preserved site). In addition, there has been a virtual volumetric recomposition, in 3D, of the entire Islamic walled complex (walls, towers, entrance doors to the Medina and cistern of Albacar). Also, the musealization of the Albacar site and the recovery of the volume of the cistern has been projected. This work is contributing to the recognition and social awareness of the heritage importance of the Islamic walls of Mula, being a guarantee for its restoration and conservation as a cultural reference of the city.