An external preparation kit is provided, which has a gel sheet having excellent water-releasing property and elongation, and a water-soluble sheet having excellent solubility. Thus, an external preparation kit according to the invention comprises: (I) a gel sheet containing: (a) 1-6% by mass of a composition comprising 10-80% by mass of carrageenan, 5-50% by mass of locust bean gum, 5-50% by mass of xanthan gum, and 5-50% by mass of mannan； and (b) water； and (II) a water-soluble sheet containing one or more component(s) selected from the group consisting of a cellulose derivative, polyvinyl alcohol, collagen, starch, gelatin, agar, and sugar.
