The object of the present invention is to provide a non-woven fabric comprising a glass fiber which has a strength, flexibility and water resistance, has less skin irritancy and a good surface decoration property, and a process for producing the same, more specifically, to provide a non-woven fabric for a gypsum board which is used as a reinforcing material for a gypsum board placed on one side or both sides of the gypsum board, and a process for producing the same. A non-woven fabric for a gypsum board comprising 20 to 60% by weight of a glass fiber, 10 to 50% by weight of an organic fiber and 10 to 50% by weight of a fibrous binder, which contains the organic fiber at least on a gypsum core contact surface, is provided.