Disclosed is a water-in-oil emulsion type sunscreen cosmetic which contains (a) 0.1 to 10 mass% of dimethyl diethyl benzalmalonate, (b) 0.02 to 8 mass% of phenylbenzimidazole sulfonic acid, and (c) a neutralizing agent for the component (b), wherein an aqueous phase makes up 40 mass% or less of the cosmetic. It becomes possible to provide a water-in-oil emulsion type sunscreen cosmetic which comprises (a) dimethyl diethyl benzalmalonate and (b) phenylbenzimidazole sulfonic acid, does not cause the crystallization of phenylbenzimidazole sulfonic acid contained therein, and is extremely stable over time.