A solid reactant sheet, a solid reactant stack, and a fuel cartridge are provided. The solid reactant sheet comprises an adhesive film and a plurality of solid reaction particles. The adhesive film has a first surface, a second surface opposite to the first surface, and a plurality of through holes connected between the first surface and the second surface. The plurality of solid reaction particles are adhered to the first surface, and the solid reaction particles react with a reactant for generating a gas. Furthermore, a solid reactant stack and a fuel cartridge are also provided.