NOVELTY - Production of microbial organic fertilizer by sludge treatment and fermentation includes preparing fermentation medium using sludge and auxiliary materials; adding fermenting bacteria and preparing high temperature compost materials; performing strip high temperature compost; fermenting to obtain early organic fertilizer; removing the unhumified and powdered compost materials in early organic fertilizer; stabilizing at normal temperature; performing granulation process; crushing, granulating, drying, and cooling the early organic fertilizer after fermentation; and screening.    USE - Production of microbial organic fertilizer (claimed).    ADVANTAGE - The method uses wide raw material sources and simple equipment; and has low cost, convenient operation, and short fermentation time. The sludge after fermentation is used for producing organic fertilizer, solving the secondary environmental pollution and waste of organic fertilizer resource.    DETAILED DESCRIPTION - Production of microbial organic fertilizer by sludge treatment and fermentation comprises:    (A) preparing fermentation medium using sludge and auxiliary materials at 0.5-2:0.3-2.5 weight ratio at normal temperature;    (B) adding fermenting bacteria (0.3-0.8 wt.% based on the weight of the fermentation medium); fully stirring to prepare high temperature compost materials; and keeping the relative humidity at 60-80%;    (C) putting the high temperature compost materials in ventilated environment shelter to perform strip high temperature compost; controlling the temperature at 35-75 degrees C; continuously fermenting for 5-7 days; controlling the water content at 35-45%; and obtaining early organic fertilizer;    (D) removing the unhumified and powdered compost materials in early organic fertilizer; and putting the decomposed early organic fertilizer to a cool, dry, and well- ventilated place; stabilizing at normal temperature for 7-15 days; and finishing the fermentation and performing the granulation process; and    (E) crushing, granulating, drying, and cooling the early organic fertilizer after fermentation; screening with 40-80-mesh screen; obtaining the microbial organic fertilizer; weighing; and packaging.