To provide a pressure sensitive adhesive seal which can be accurately and cleanly stuck to a prescribed position without the generation of creases.

The pressure sensitive adhesive seal is constituted of at least a printing base material 1, a pressure sensitive adhesive agent layer 2 and a peelable base material 3, and a peelable base material half-cut line 5 is formed at the end part of the material 3. Thus, at least the initial peelable base material 3a is peeled off so that an initial sticking part 31 may come out, then, the part is stuck to the material to be stuck 6 while positioning the part on the end part 61 and edge part 62 of the material 6, thereafter, by gradually sticking the aforesaid part to the part 6 while peeling off the remaining peelable paper 3, the seal is cleanly stuck without the generation of creases.