The invention discloses an application of a volatile matter as a tomb mural removing material and removing and restoration processes. The removing material is cyclododecane, menthol, or mixture of cyclododecane and menthol. The removing process includes determining a parting line to make a mural clamping board, pasting a fabric, coating the removing material, cutting pictures and removing. The restoration process includes cleaning the back of a mural, reinforcing the back, pasting a non-woven fabric, removing the removing materials, pasting a fabric, pasting paper, reinforcing pictures, bonding a support, cleaning and finishing the pictures, filling missing parts and completing the pictures, sealing and protecting, adding a label to the back of the support, and displaying and preserving. The removing material is novel, simple in process, convenient, rapid, timesaving and laborsaving, has quite high universality and practicality, and particularly has extremely important significance to salvage and protection of tomb murals poor in unearthed situations.