NOVELTY - An effective viable bacteria carrier is prepared by crushing fruit residues to obtain culture medium of temperature resistance bacteria, and regulating water content of effective viable bacteria; piling culture medium into ventilation container, slowly heating, fermenting and decomposing; adding urea and uniformly mixing; ventilating, stirring and regulating temperature; crushing and regulating water content of effective viable bacteria; piling in ventilation container and slowly heating; ventilating, stirring and cooling; and drying, crushing and sieving.    USE - An effective viable bacteria carrier for growing decomposing bacteria and thermophilic Actinomyces useful for composting and obtaining organic fertilizer (claimed).    ADVANTAGE - The composting method has quick fermenting and decomposing effect, no odor, no environmental pollution, low cost, simple operation, convenient transportation and easy promotion.    DETAILED DESCRIPTION - An effective viable bacteria carrier is prepared by:    (A) crushing fruit residues obtained by pressing and processing juice, to obtain culture medium of temperature resistance bacteria, and regulating water content of effective viable bacteria at 20-40 wt.%;    (B) piling culture medium into ventilation container, slowly heating at 50-60 degrees C, fermenting and decomposing;    (C) adding 0.3-0.5 wt.% urea into culture medium, uniformly mixing, and setting aside for 4-6 days;    (D) ventilating, stirring and regulating temperature of culture medium at 30-50 degrees C;    (E) taking out culture medium, crushing, and regulating water content of effective viable bacteria at 20-40 wt.%;    (F) piling in ventilation container for 4-6 days, and slowly heating culture medium at 60-80 degrees C;    (G) ventilating, stirring and cooling culture medium at 30-50 degrees C; and    (H) taking out culture medium, drying, crushing, and sieving to obtain particles i.e. effective viable bacteria carrier with diameter of 1-3 mm of diameter.    An INDEPENDENT CLAIM is included for composting method comprising regulating water content of effective viable bacteria at 20-40 wt.%, and mixing with organic solid waste, where ratio of effective viable bacteria to organic solid waste is 1:8-15; and uniformly stirring, making water of mixture at 20-40 wt.%, maintaining ventilation, piling for 20-30 days, and fermenting and decomposing organic waste to obtain organic fertilizer.