NOVELTY - The sheet has a rib (3) fixed with an electric conduction substrate (1). A non-leakage bar (2) and the rib are connected with a ridge. A temperature-humidity-heat flow density co-measurement sensor (4) is fixed with a rib. Two ends of the temperature-humidity-heat flow density co-measurement sensor are fixed with a lead wire (5). An edge of the electric conduction substrate is arranged with a forming pin (6) and a hole (7). A thin film flow meter is connected with a leading-out terminal and a humidity-sensitive wire leading-out end and arranged on a side of a silicon dioxide insulation layer.    USE - Fuel battery inner temperature-humidity-heat flow density distribute sheet.    ADVANTAGE - The sheet realizes better synchronous online measurement function of a fuel battery without need of a fuel cell structure in an effective manner.    DETAILED DESCRIPTION - The electric conduction substrate is square, round, polygon, trapezoid and triangular-shape. The thin film flow meter is provided with humidity sensitive capacitor upper and lower electrodes that are made of a metal plating layer material. The metal plating layer material is selected from gold, copper and molybdenum metal materials. The electric conduction substrate is provided with an upper aluminum electrode layer e.g. saw tooth-shape and comb-shape. The electric conduction substrate is arranged with a pure metal plating layer that is selected from tungsten, nickel, copper and cobalt materials and a metal mixture material that is made of a constantan copper material. The thin film flow meter is fixed with a lap joint e.g. arc-shaped, wave-shaped and Z-shaped. The humidity-sensitive wire leading-out end is ellipse, rectangle, trapezoid and triangular-shape.    DESCRIPTION OF DRAWING(S) - The drawing shows a side view of a fuel battery inner temperature-humidity-heat flow density distribute sheet.    Electric conduction substrate (1)    Non-leakage bar (2)    Rib (3)    Temperature-humidity-heat flow density co-measurement sensor (4)    Lead wire (5)    Forming pin (6)    Hole (7)