A method of inspecting a pressure loss in a high temperature fuel cell formed by stacking an electrolyte electrode assembly between separators, the electrolyte electrode assembly including an anode, a cathode, and an electrolyte interposed between the anode and the cathode, the separators each including: a sandwiching section for sandwiching the electrolyte electrode assembly, the sandwiching section having a fuel gas channel for supplying a fuel gas along an electrode surface of the anode and a fuel gas inlet for supplying the fuel gas to the fuel gas channel, wherein a throttle for limiting gas flow is provided at the fuel gas inlet; a bridge connected to the sandwiching section, a fuel gas supply channel being formed in the bridge for supplying the fuel gas to the fuel gas inlet; and a fuel gas supply section connected to the bridge, a fuel gas supply passage extending through the fuel gas supply section in a stacking direction for supplying the fuel gas to the fuel gas supply channel, characterized by a cross sectional area in an opening of the fuel gas inlet, a cross sectional area in an opening of the fuel gas supply channel, and a cross sectional area in an opening of the fuel gas supply passage such that a pressure loss P1 by the fuel gas supplied to the fuel gas inlet, a pressure loss P2 by the fuel gas supplied to the fuel gas supply channel, and a pressure loss P3 by the fuel gas supplied to the fuel gas supply passage have relationships of P1 > P2 and P1 > P3 during high temperature operation of the fuel cell, and the ratio of a pressure loss P4 in the entire fuel gas inlet by air supplied to the fuel gas inlet to a pressure loss P5 in the entire fuel gas supply channel by air supplied to the fuel gas supply channel is larger than 10, i.e. P4/P5 > 10, and the ratio of the pressure loss P4 in the entire fuel gas inlet by air supplied to the fuel gas inlet to a pressure loss P6 in the entire fuel gas supply passage by air supplied to the fuel gas supply passage is larger than 10, i.e. P4/P6 > 10, within the normal temperature range of 10°C to 30°C when the fuel cell is not in operation, and performing pressure loss inspection of the fuel cell in the normal temperature range by measuring the total pressure loss P4 + P5 + P6. a sandwiching section for sandwiching the electrolyte electrode assembly, the sandwiching section having a fuel gas channel for supplying a fuel gas along an electrode surface of the anode and a fuel gas inlet for supplying the fuel gas to the fuel gas channel, wherein a throttle for limiting gas flow is provided at the fuel gas inlet; a bridge connected to the sandwiching section, a fuel gas supply channel being formed in the bridge for supplying the fuel gas to the fuel gas inlet; and a fuel gas supply section connected to the bridge, a fuel gas supply passage extending through the fuel gas supply section in a stacking direction for supplying the fuel gas to the fuel gas supply channel, characterized by a cross sectional area in an opening of the fuel gas inlet, a cross sectional area in an opening of the fuel gas supply channel, and a cross sectional area in an opening of the fuel gas supply passage such that a pressure loss P1 by the fuel gas supplied to the fuel gas inlet, a pressure loss P2 by the fuel gas supplied to the fuel gas supply channel, and a pressure loss P3 by the fuel gas supplied to the fuel gas supply passage have relationships of P1 > P2 and P1 > P3 during high temperature operation of the fuel cell, and the ratio of a pressure loss P4 in the entire fuel gas inlet by air supplied to the fuel gas inlet to a pressure loss P5 in the entire fuel gas supply channel by air supplied to the fuel gas supply channel is larger than 10, i.e. P4/P5 > 10, and the ratio of the pressure loss P4 in the entire fuel gas inlet by air supplied to the fuel gas inlet to a pressure loss P6 in the entire fuel gas supply passage by air supplied to the fuel gas supply passage is larger than 10, i.e. P4/P6 > 10, within the normal temperature range of 10°C to 30°C when the fuel cell is not in operation, and performing pressure loss inspection of the fuel cell in the normal temperature range by measuring the total pressure loss P4 + P5 + P6.