To provide a neighborhood field noise suppression sheet having a high absorption capability for electromagnetic noises from several hundred MHz to several GHz.

In a neighborhood field noise suppression sheet, a pair of plastic films 1a and 2a with metal membranes 1b and 2b formed on one side thereof are adhered by a conductive adhesive 3 with turning the metal membranes 1b and 2b inside, each of the metal membranes 1b and 2b is comprised of a magneto-metal, and a thickness of each of the metal membranes 1b and 2b is adjusted in such a manner that a surface resistance of the pair of adhered metal membranes 1b and 2b becomes 20 to 150 Ω/sq.