To provide a substrate film for a visual marking sheet causing no wrinkles, tearing-off, cracks and the like, and a visual marking sheet exhibiting an excellent pasting property capable of following a projected part using the film.

The substrate film (1) for the visual marking sheet comprises 100 pts. wt. of a polyethylene resin or a polypropylene resin, 10-50 pts. wt. of a plastic hydrocarbon resin having a softening point of not lower than 50°C and 60-110 pts. wt. of a white inorganic compound.