A composition for a soft capsule coating that comprises: a base material containing gelatin or a mixture of starch with carrageenan as a main component； and a plasticizer containing sorbitol, maltitol and glycerol as main components. By forming the composition into a film to give a soft capsule coating, a soft capsule preparation, which contains glycerol as a plasticizer and yet shows little softening of the soft capsule coating or surface stickiness and has excellent gloss and high transparency, can be obtained.本發明的軟膠囊皮膜用組成物包含：基劑，係以明膠，或澱粉類及鹿角菜苷類的混合物作為主成分；以及可塑劑，係以山梨糖醇、麥芽糖醇及甘油作為主成分；若將本發明的軟膠囊皮膜用組成物進行成膜來調製軟膠囊皮膜，則可獲得一種軟膠囊劑，該軟膠囊劑使用甘油作為可塑劑，同時不易引起軟膠囊皮膜軟化或表面黏著，且光澤或透明性優異。
