To provide a radiological image conversion panel that has a coating type phosphor layer, prevents bubble swelling of the phosphor layer, and provides a high-quality radiological image.

The phosphor layer does not contain a component causing a polymerization reaction of a binder, a protective film contains inorganic particles, and the content of the inorganic particles is set 8 to 18 wt.% to the solid component other than the inorganic particles.