highly suppress the decrease in gelatin-coating solubility over time, and particularly, can also impart a sufficient capsular strength when is applied to a soft capsule, and also provides a capsule coating and a capsule using the same. The composition for capsule coating is characterized by containing a gelatin (A) and an inositol phosphate (B) represented by a general formula: C6O6H12-n (H2PO3)n (wherein n represents an integer from 1 to 6).