The invention provides a bulk curing barn hanging rod continuous heating fragrant and soft roasting method, and the method employs a technology of moisturizing and yellowing, slow color fixing, slow continuous heating, and temperature and humidity dynamic changing, guarantees that when the baking time of tobacco leaves at each layer in a curing barn is within a temperature and humidity range suitable for quality modulation is enough and has little difference, i.e., enabling the tobacco leaves at each layer to be yellowed fully and macromolecule materials to be fully or moderately degraded and converted into more aroma components, achieving the timely color fixing and reinforcement of quality, achieving the yellowing, fragrant roasting, soft roasting and mature roasting of tobacco leaves at each layer in the curing barn, and improving the tobacco leave baking quality and the industrial usability. The method provided by the invention is simple and clear, and is convenient for a baking person to master, set and modify.