A fuel cell in which a plurality of power-generating elements are stacked together, the power-generating element comprising: a planar cell to one principal surface of which an anode component is connected and to the other principal surface of which a cathode component is connected; an anode plate stacked on the anode component to be electrically connected to the anode component; and a cathode plate stacked on the cathode component to be electrically connected to the cathode component, wherein the anode plate includes a fuel supply manifold passing through the anode plate in a stacking direction to form a passage of a fuel gas, and arranged on an outer perimeter of the cell, and, a plurality of first gas passages arranged across the principal surfaces and extending from a side closer to the fuel supply manifold to a side closer to an end opposite to the fuel supply manifold with respect to the cell, characterized in that a second gas passage arranged between the fuel supply manifold and the cell and extending to a same length as a width of the cell and across all the first gas passages such that the second gas passage is connected, in the stacking direction of the power-generating elements, with ends of the first gas passages which are open in the stacking direction, a gas intake, open to a side surface of the fuel supply manifold, through which the fuel gas flows from the fuel supply manifold into the second gas passage, and a restricting portion arranged along an opposed surface of the second gas passage, the opposed surface facing the gas intake, so as to restrict flowing of the fuel gas toward the first gas passages from the second gas passage and disperse the fuel gas flowing into the second gas passage in a longitudinal direction of the second gas passage. a planar cell to one principal surface of which an anode component is connected and to the other principal surface of which a cathode component is connected; an anode plate stacked on the anode component to be electrically connected to the anode component; and a cathode plate stacked on the cathode component to be electrically connected to the cathode component, wherein the anode plate includes a fuel supply manifold passing through the anode plate in a stacking direction to form a passage of a fuel gas, and arranged on an outer perimeter of the cell, and, a plurality of first gas passages arranged across the principal surfaces and extending from a side closer to the fuel supply manifold to a side closer to an end opposite to the fuel supply manifold with respect to the cell, characterized in that a second gas passage arranged between the fuel supply manifold and the cell and extending to a same length as a width of the cell and across all the first gas passages such that the second gas passage is connected, in the stacking direction of the power-generating elements, with ends of the first gas passages which are open in the stacking direction, a gas intake, open to a side surface of the fuel supply manifold, through which the fuel gas flows from the fuel supply manifold into the second gas passage, and a restricting portion arranged along an opposed surface of the second gas passage, the opposed surface facing the gas intake, so as to restrict flowing of the fuel gas toward the first gas passages from the second gas passage and disperse the fuel gas flowing into the second gas passage in a longitudinal direction of the second gas passage. a fuel supply manifold passing through the anode plate in a stacking direction to form a passage of a fuel gas, and arranged on an outer perimeter of the cell, and, a plurality of first gas passages arranged across the principal surfaces and extending from a side closer to the fuel supply manifold to a side closer to an end opposite to the fuel supply manifold with respect to the cell, characterized in that a second gas passage arranged between the fuel supply manifold and the cell and extending to a same length as a width of the cell and across all the first gas passages such that the second gas passage is connected, in the stacking direction of the power-generating elements, with ends of the first gas passages which are open in the stacking direction, a gas intake, open to a side surface of the fuel supply manifold, through which the fuel gas flows from the fuel supply manifold into the second gas passage, and a restricting portion arranged along an opposed surface of the second gas passage, the opposed surface facing the gas intake, so as to restrict flowing of the fuel gas toward the first gas passages from the second gas passage and disperse the fuel gas flowing into the second gas passage in a longitudinal direction of the second gas passage.