NOVELTY - Preparing microbial biomass carbon soil by sewage sludge static aerobic composting system comprises: e.g. (i) providing fresh sludge, recycled mixed material and a sludge compost conditioning agent; (ii) stacking the materials; (iii) arranging an online temperature probe in the stack and configuring a controller connected with temperature probe; (iv) customizing aeration frequency and time of the blast aerator system; (v) repeating the step (iv) and reducing the sewage sludge content to obtain the product; (vi) filtering and storing; and (vii) setting up a deodorization device.    USE - The method is useful for preparing microbial biomass carbon soil by sewage sludge static aerobic composting system.    ADVANTAGE - The method: is simple and easy to operate and is environment friendly.    DETAILED DESCRIPTION - Preparing microbial biomass carbon soil by sewage sludge static aerobic composting system comprises: (i) providing fresh sludge, recycled mixed material and a sludge compost conditioning agent, where the fresh sludge is a large quantity of sludge produced at the end of the sewage processing in the sewage processing factory, where the moisture content in the pre-processing is 70-80%, recycled mixed material is microbial biomass carbon soil from the front compost, the biomass carbon soil produced by the regular composting method is taken in the primary use, the moisture content in pre-processing is 30-50% and the sludge compost conditioning agent is at least one of mixed material of mushroom residue compost, saw powder, rice bran and plant straw powder, the moisture content in pre-processing is 10-15%, where the mixing amount is (in parts by wt.) fresh sludge (100), the recycled mixed material (40-50) and the sludge compost conditioning agent (15-20); (ii) stacking the materials by using a material mixing machine and a shovel machine, where the stacking requirements are as follows: 60-90 m length, the bottom width is 4-5 m and the height is 1.4-1.6 m; (iii) arranging an online temperature probe in the stack by providing a spacing of 20-40 m and configuring a controller connected with the temperature probe; (iv) customizing the aeration frequency of the blast aerator system and the aeration time according to the feedback parameter of the online temperature probe, where the re-stacking comprises: re-piling once in a day, when the temperature is heated above 55 degrees C, providing stack workshop with excellent ventilation, where if the temperature does not reach 55 degrees C in clear weather, maintaining the stack in a heated state, re- stacking once in every three days, where the workshop has weak ventilation, if the weather is bad, re-stacking once in every 4-5 days, and re-stacking in the re-stacking machine to maintain the shape; (v) repeating the step (iv), where the temperature in the pile is maintained above 55 degrees C for 5-6 days, and the sewage sludge content of the stack is reduced below 40% during 15-18 days to form microbial biomass carbon in resource recycling; (vi) placing continuously for 5-6 days, where the moisture content is reduced continuously, when the moisture content is reduced to 30%, filtering the material by using the cylindrical filtering machine to filter different products, e.g. less than 4 mm organic powder, 4-6 mm organic particle and more than 6 mm nutrient soil, classifying, packing and storing; and (vii) setting up a deodorization device, comprising an air discharging pipeline and an induced air mechanism. The pipelines on the lower part of the periphery of the workshop are provided with an air inlet composed of intensive holes. The upper part of the outside of the workshop is provided with an air discharging outlet and the inside of the workshop is provided with an air inlet. The pipeline is connected with the induced air fan on the outside of the workshop. The pipeline in the air discharging hole of the workshop is conveyed into the deodorization device. The upper part of the deodorization device is provided with a plant liquid atomizing and spraying device.