To provide a functional fiber sheet consisting essentially of vegetable fibers, thermally fusible thermoplastic fibers and vegetable fibers composed of a powdery or a fibrous functional material by including the functional material without inhibiting a functional activity and a shape thereof and to provide a three-dimensional molded product using the fiber sheet and methods for producing the functional fiber sheet and three-dimensional molded product using the fiber sheet at low cost according to a dry process.

The functional fiber sheet consisting essentially of the vegetable fibers, thermally fusible thermoplastic fibers and vegetable fibers consisting essentially of the powdery or the fibrous functional material is provided. The three-dimensional molded product is molded by hot molding the functional fiber sheet. The methods for producing the functional fiber sheet and three-dimensional molded product are provided.