The invention discloses tobacco leaf quality improvement and aroma enhancement baking technological parameter setting of a bulk curing barn. According to the tobacco leaf quality improvement and aroma enhancement baking technological parameter setting, the dry-bulb temperature rise process of the tobacco leaf curing process is divided into eight stages, and key dry-bulb temperatures are set at each stage according to the technological parameter characteristics and target requirements. Transition dry-bulb temperatures are arranged among the key dry-bulb temperature points, so that the dry-bulb temperature variation amplitude and wet-bulb temperature variation amplitude in the tobacco leaf curing process are reduced, and the fire-switching temperature rise and humidity reduction transition in the stages of the baking process of the tobacco leaf are stable. The baked tobacco leaves are loose in appearance structure and strong in lubrication sense, in the sensory quality evaluation, the aroma is full as well as fine and smooth, little miscellaneous qi exists, the irritation is small, and the mouthfeel is comfortable.