NOVELTY - A carbon-plastic conducting compound bipolar plate comprises component of polymer resin, carbon conducting filler and additive. The mass ratio of polymer resin and carbon conducting filler is 1-7:9-3. The mass ratio of additive and polymer resin is 0.05-0.7:10.    USE - Carbon-plastic conducting compound bipolar plate is used for liquid energy-storing battery.    ADVANTAGE - The carbon-plastic conducting compound bipolar plate has high conducting performance, liquid resistance and mechanical property, and economically provides battery with high production efficiency.    DETAILED DESCRIPTION - A carbon-plastic conducting compound bipolar plate comprises component of polymer resin, carbon conducting filler and additive. The mass ratio of polymer resin and carbon conducting filler is 1-7:9-3. The mass ratio of additive and polymer resin is 0.05-0.7:10. The polymer resin is thermoplastic resin, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyformaldehyde, polyphenyl ether, polymethyl methacrylate, fluororesin, polyphenyl thioether, polysulfone, and/or polyether sulfone. The polymer resin is mixture of thermoplastic resin and thermoplastic elastomer. The thermoplastic elastomer is cinnamic thermoplastic elastomer, or ethylene-octylene copolymer. The carbon conducting filler is carbon black, graphite, carbon fiber, graphite fiber and/or acetylene black. The additive is plasticizer, lubricant and/or coupling agent. The plasticizer is di-n-butyl phthalate, dioctyl terephthalate and/or dioctyl sebacate. The lubricant is polyethylene wax, polypropylene wax, synthetic paraffin, stearic acid, calcium stearate, zinc stearate and/or stearic amide. The coupling agent is organic silane or titanic acid ester. The organic silane is ethenyl silane, epoxy silane, amino silane, chlorinated silane, and sulfonyl azide silane. The titanic acid ester is mono-alkoxyl phosphate type titanic acid ester, mono-alkoxyl pyrophosphate type titanic acid ester, chelated titanic acid ester, and ligand type titanic acid ester. An INDEPENDENT CLAIM is included for preparation method of the carbon-plastic conducting compound bipolar plate.