The invention discloses a garage type biological drying method, belonging to the field of the household refuse disposal. The garage type biological drying method comprises the following steps: crushing household refuse to be with particle sizes not larger than 200mm, stacking the crushed life garbage in a garage, conveying hot air produced in other garages subjected to biological drying into the garage to help to establish an environment necessary for organisms in the garage quickly, compulsively ventilating a refuse dump after the heap temperature reaches 50-55 DEG C, feeding back and controlling oxygen concentration in ventilation quantity so as to make full use of heat evaporative water produced by aerobic microbial metabolism and take away the water vapor through the sufficient ventilation flow to quickly dry the refuse, sorting the dry refuse and carrying out resource utilization. A plurality of garage type drying cabins can be continuously arranged, and each cabin is provided with independent ventilation, deodorization and self control systems. According to the garage type biological drying method disclosed by the invention, weather influence is avoided, the refuse treatment capacity is large, the reaction period is short, the leachate production amount is low, the biological stability is good, the energy consumption and cost are low, the environmental pollution is effectively controlled, technological parameters can be adjusted online to monitor in real time, and the garage type biological drying method is safe and reliable.