NOVELTY - Preparation of anode catalyst involves preparing polyaniline/mesoporous tungsten trioxide by adding aniline hydrochloric monomer (0.1-0.7 ml) to 1 M of hydrochloric acid (0.3-2.1 ml) and deionized water (35 ml), maintaining at 0-5 degrees C/5 seconds, slowly dripping 1-2 drops of ammonium persulfate solution (0.2-0.6 mol/L) at every 5 seconds, stirring for 6-8 hours, filtering, washing using de-ionized water, and then with methanol, reacting at 60 degrees C, and vacuum drying at 20 hours.    USE - Preparation of anode catalyst used for microbial fuel cell.    ADVANTAGE - The method economically provides anode catalyst having favorable stability and biocompatibility. The microbial fuel cell has improved energy output.    DETAILED DESCRIPTION - Preparation of anode catalyst involves preparing polyaniline/mesoporous tungsten trioxide by adding aniline hydrochloric monomer (0.1-0.7 ml) to 1 M of hydrochloric acid (0.3-2.1 ml) and deionized water (35 ml), maintaining at 0-5 degrees C/5 seconds, slowly dripping 1-2 drops of ammonium persulfate solution (0.2-0.6 mol/L) at every 5 seconds, stirring for 6-8 hours, filtering, washing using de-ionized water, and then with methanol, reacting at 60 degrees C, and vacuum drying at 20 hours. The aniline hydrochloric monomer is obtained by dissolving mesoporous tungsten trioxide (0.4 g) in 0-2 M of hydrochloric acid (3-5 ml), ultrasonically processing and adding aniline hydrochloric. The mesoporous tungsten trioxide is obtained by calcining composite material at 450-500 degrees C, adding to 1-3 M of hydrogen fluoride solution (25-35 mL), stirring for 6-8 hours to remove the silicon dioxide template, centrifuging and washing. The composite material is obtained by dissolving 12-phosphortungstic acid (5 g) in ethanol (20 ml), in weight ratio of 1.1-1.2, injecting double helix structure of silicon oxide (0.5-1) and evaporating ethanol at 35-45 degrees C. The hexagonal double-screw structure of silicon template is obtained by preparing white powder white by reacting block copolymer P123 in weight ratio of 1-2, 0.6 M of hydrochloric acid (127-140 mL) and n-butanol at 34-36 degrees C in a oil bath, stirring until the surfactant is completely dissolved, adding tetraethyl orthosilicate (1.5-2.5 g), stirring for 20 hours, pouring into polytetrafluoroethylene hydrothermal bottle, hydro-thermal reacting at 100 degrees C for more than 20 hours, cooling, filtering, washing and naturally drying at room temperature, and roasted at 500-600 degrees C to remove organic structure-directing agent. An INDEPENDENT CLAIM is included for application of anode catalyst, which is used for microbial fuel cell.