The utility model discloses a ridging fertilizer applicator for flue-cured tobacco with a front-mounted fertilizer applicator, and belongs to the technical field of agricultural machinery. The ridgingand fertilizing machine overcomes the defects that a traditional ridging and fertilizing machine in the prior art is uneven in fertilization and poor in water retention and soil moisture conservationeffect. A main body structure of the ridger comprises a rack, a fertilizer storage box and an engine are arranged on the rack, a main shaft is arranged on the engine, a rotary tillage shaft and a ridging plate are arranged below the rack, a rotary tillage cutter is arranged on the rotary tillage shaft, the main shaft is in transmission connection with the rotary tillage shaft through a chain, andthe fertilizer storage box is arranged in front of the rotary tillage cutter. The ridging, fertilizing and watering device is mainly used for ridging, fertilizing and watering the tobacco field.