To provide an environment-friendly coating masking film roll which comprises a masking film and a pressure-sensitive adhesive tape both having a removal function against a toxic substance such as hydrogen chloride gas or the like and both inhibiting the generation of a dioxin at its source.

The environment-friendly coating masking film roll comprises a masking film consisting of 1-30 wt.% of a composite ceramics which is of carbonate compounds having the main components of calcium and magnesium and which has been pulverized into fine powder, and of 70-99 wt.% of a high- density polyethylene(HDPE) or low-density polyethylene(LDPE); and a pressure- sensitive adhesive tape is adhered to the edge part of the film where a pressure- sensitive adhesive is made by adding 5-40 wt.% of aluminum hydroxide to 60-95 wt.% of a conventional adhesive and then is applied onto a cloth tape.