Disclosed is a water-based adhesive skin patch which has excellent storage stability, can achieve excellent accumulation of butenafine hydrochloride contained therein on a patched area such as the skin and a nail, and has a high therapeutic effect. Specifically disclosed is a water-based adhesive skin patch containing butenafine hydrochloride, which is characterized by containing butenafine hydrochloride, glycol salicylate and propylene glycol in a water-containing gel ointment. Specifically, butenafine hydrochloride is dissolved in a mixed solution of glycol salicylate and propylene glycol, and the resulting solution is dispersed in a water-containing gel. Particularly, the mixing ratio of glycol salicylate to propylene glycol is 1:2 to 1:30.
