NOVELTY - Promoting microbe activity in kitchen residue compost comprises placing simulative kitchen residues composed of potatoes, rice, carrots, leaves, flesh, beans, and inoculation soils in a compost reaction barrel; adding organic acid (0.3-0.7 mmol/50 g) or salt or alkali (0.3-0.7 mmol/50 g) in the sampled compost; and analyzing the variation of microbe activity under different circumstances.    USE - Method for promoting microbe activity in kitchen residue compost (claimed).    ADVANTAGE - The method can improve the microbe activity, accelerate compost, shorten the compost period, and realize the target of the decrement of organic substances during compost.    DETAILED DESCRIPTION - Promoting microbe activity in kitchen residue compost involves placing simulative kitchen residues composed of potatoes, rice, carrots, leaves, flesh, beans, and inoculation soils in a ratio of 5:8:2:8:8:2:8 in a compost reaction barrel. The lid of the reaction barrel is installed and ventilated from the bottom of the reaction barrel at a velocity of 0.4-0.6 L/minute. The waste pipe is opened at the top of the reaction barrel. Discharge pipe is percolated at the bottom to compost at room temperature and aerobic environment, and prevented from accumulation of the percolate. Sampling is carried out on fifth day and ninth day. Organic acid (0.3-0.7 mmol/50 g) or salt or alkali (0.3-0.7 mmol/50 g) is added in the compost sampled on the fifth day and the ninth day. The variation of microbe activity is analyzed under different circumstances. The comparison indicates that the organic acid can restrain the activity of microbes during compost. The added sodium acetate has obvious promotion effect on microbe activity. Plate colony counting method is adopted to measure the colony number of microbes in the compost sample. The inhibitive factor is used to indicate the extent of organic acid or salt affecting the microbe activity during compost. It is equal the quotient of the number of microbes after the acid or salt is added in the compost sample divided by the number of microbes in the original compost sample. The pH value in the compost sample is measured by the pH meter.