NOVELTY - A hydrophobing agent/conductive carbon material complex is used as an electric catalyst carrier for a fuel battery.    USE - A hydrophobing agent/conductive carbon material complex is used as an electric catalyst carrier for a fuel battery. The electric catalyst is used for preparing an electrode. (all claimed)    ADVANTAGE - The electric catalyst fuel battery prepared from the hydrophobing agent/conductive carbon material complex has high utilization rate of the electrical catalyst, strong transmission ability of reaction air and product, and small mass transfer polarization loss. The combined fuel battery has good battery output performance, so it can be particularly suitable as fuel battery using air as oxidant.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) an electric catalyst for fuel battery, being a complex of an active particle/(hydrophobing agent/conductive carbon material) and being a composite product of the hydrophobing agent/conductive carbon material complex which is used as the electric catalyst carrier and a catalyst active particle, where the active particle can be one or more metal elements from VIII family of periodic system of elements, or chromium, molybdenum, zirconium or titanium;    (2) a method of preparing the electric catalyst, comprising dissolving a precursor of an active particle to glycol, dispersing and well mixing it to obtain a solution A; using the hydrophobing agent/conductive carbon material complex as the electric catalyst carrier and mixing glycol according to the proportion of 10-500 ml of glycol to 1 g of carrier, and obtaining a sizing agent B after dispersing and well stirring it; dropping the solution A to the sizing agent B, stirring the mixture so that the two can be well mixed and the pH of the solution can be regulated at 9-14; processing continuous or discontinuous microwave heating to the pH value-regulated mixture for 0.1-30 minutes to obtain a sizing agent C; stirring the sizing agent C, cooling it to room temperature, regulating the pH value at 1-3 and obtaining a sizing agent D; and centrifugal washing the sizing agent C, vacuum drying it at 60-120 degrees C to obtain an active particle/(hydrophobing agent/conductive carbon material) complex;    (3) an electrode for a low-temperature fuel battery, comprising the electric catalyst for a conductive polymer and the fuel battery; and    (4) a method of preparing the electrode, comprising mixing the electric catalyst with isopropanol, and mechanical stirring or ultrasonic dispersing to obtain an electric catalyst serosity; adding a proton conductive polymer to the electric catalyst serosity in which the added amount of the proton conductive polymer is 5-40 mass% of the total mass of the conductive polymer and the catalyst, and then obtaining a catalyst sizing agent; and preparing an air diffusion layer or a proton exchange film surface using the prepared catalyst sizing agent through spraying, screen painting or scraping, and naturally drying it to form the electrode.