The invention discloses a low-emission solid organic waste treatment system realizing methane and active carbon production. The technical method of the low-emission solid organic waste treatment system realizing methane and active carbon production uses a waste crushing treatment system, an anaerobic digestion raw material pre-treatment and blending system, an anaerobic digestion reactor system, an anaerobic digestion residuum dehydrating system, an anaerobic digestion residuum carbonizing system, a carbonized gas collecting, heat-exchanging and purifying system, and a treatment water recycling system. The technical integration of the low-emission solid organic waste treatment system realizing methane and active carbon production is capable of finishing the optimal treatment of the biomass solid organic waste, and the final product is the clean energy methane and environment-friendly material active carbon. The partial required energy can be produced by the technical method, the energy recycling rate is high, and the treatment on the exhaust gas and effluent can be finished in the production link, the system is energy-saving and environment-friendly. By sufficiently considering the influence of various factors and the coherence among various links, the period of anaerobically treating the biomass organic solid waste can be obviously shortened, and the treatment efficiency of the organic solid waste can be sufficiently improved.