NOVELTY - Aerobic composting of sludge comprises establishing a sludge aerobic composting device comprising a fermentation chamber, a ventilation device and real time online monitoring device, uniformly paving an upper cover plate in the fermentation chamber, mixing the dehydrated sludge from a sewage processing plant and sawdust, loading into a fermentation chamber, stacking, controlling water content and volatile organic matter (volatile solids (VS)), controlling the central temperature of the stack and ventilation rate, insulating, composting and rapidly reducing the temperature of the stack.    USE - The method is useful for aerobic composting of sludge (claimed).    ADVANTAGE - The method: has good temperature control, air supply, air exhaust, and online monitoring function; ensures that the whole process is integrated; enables quick stacking, high efficient dehydration; and is safe.    DETAILED DESCRIPTION - Aerobic composting of sludge comprises (a) establishing a sludge aerobic composting device, comprising a fermentation chamber, a ventilation device and real time online monitoring device, where the fermentation chamber is installed on a stainless steel upper support provided with 0.5-1 t electric hoist to enable automatic unloading of the heap, (b) setting the outdoor temperature to be 15-30 degrees C, uniformly paving the upper cover plate in the fermentation chamber with PVC ball suspended filtering material having a diameter of 50 mm, mixing the dehydrated sludge from a sewage processing plant and sawdust in a mass ratio of 2:1-5:1, loading into a fermentation chamber, stacking, controlling the water content and volatile organic matter (volatile solids (VS)) to be respectively 60-70% and 65-80%, (c) inserting a temperature probe and an oxygen probe into the stack, controlling the central temperature of the stack, controlling the oxygen-temperature feedback ventilation based on the application number 201310076268.9, controlling the ventilation rate to prevent rapid warming of the stack, to ensure adequate oxygen supply and to maintain the central temperature of the pile at a high temperature state, dehydrating the material at a fixed ventilation rate, cooling, starting a pump, allowing passage of air through an air pipe, a buffer layer, a flow guiding folded plate, a cover plate and spherical suspension filter material, uniformly distributing, forming a gaseous insulation layer on the stack based on the high temperature of the exhaust gas to reduce heat loss, insulating the stack heating temperature, composting for 14-18 days, where the temperature of the stack rises to 55 degrees C and maintaining for more than 3-4 days, maintaining at 50 degrees C for 6-8 days, maintaining at more than 55 degrees C for 4-6 days, and rapidly reducing the temperature of the stack from the first 10 days, where the top of the fermentation chamber is provided with a temperature probe, an oxygen probe and an exhaust pipe, the main body of the fermentation chamber is PVC double layer cylinder. The hot air is allowed to flow between the inner wall layer and outer wall layer. The side wall of the fermentation chamber is provided with a tail gas pipe. The bottom of the fermentation chamber is provided with a buffer layer, flow guiding folded plate, an air inlet, a drain pipe, and zig-zag flow guiding folded plate inclined at an angle of 90 degrees . The upper guide folded plate is provided with a hole cover plate. The ventilation system comprises an air pump, a flow meter, an electromagnetic valve and an air pipe. The flow meter and electromagnetic valve are set in the air pipe near a gas pump. The gas pump is connected with the air inlet through the air pipe. The real-time online monitoring device comprises an oxygen monitor, a temperature monitor, a carbon dioxide monitor circuit, ammonia monitoring circuit and hydrogen sulfide monitoring circuit.