The utility model relates to a flue-cured tobacco mulching film crevasse quantitative fertilizer applicator, and belongs to the technical field of agricultural equipment. A material limiting sleeve isarranged in the machine shell. The top and the bottom of the material limiting sleeve are provided with a feeding pipe and a discharging pipe respectively, wherein the feeding pipe and the discharging pipe are communicated with the storage barrel and the distribution pipe. A feeding roller is concentrically installed in the material limiting sleeve, at least two quantitative material grooves areevenly formed in the surface of the feeding roller in the radial direction, the micro motor is connected with the feeding roller through a rotating shaft, and a control switch connected with the micromotor is arranged on the handle; according to the utility model, the fertilization mechanism connected with the fertilization pipe is arranged on the bracket at the top of the film breaking ring; thecontrol switch can be pressed down and the motor can be controlled to rotate by a certain angle during film breaking to finish feeding and discharging operations, and after discharging, the fertilizer is uniformly distributed to the discharging holes along the material distributing mechanism and enters the fertilizing pipe, so that the fertilizer is uniformly scattered while film breaking is realized, the labor intensity of workers is reduced, the structure is simple, and the use is convenient.