An airflow control apparatus for a tenter oven including an entrance into which a film is conveyed and an exit from which the film is taken out, the airflow control apparatus having a box-shaped body installed adjacent to at least one or both of an upstream side in a film running direction of the entrance and a downstream side in the film running direction of the exit, includes: at least one pair of air blowing nozzles configured to blow air toward the film; at least one pair of upstream-side exhaust mechanisms configured to discharge air in the box-shaped body, and located on the upstream side of the air blowing nozzles in the film running direction; and at least one pair of downstream-side exhaust mechanisms configured to discharge the air in the box-shaped body, and located on the downstream side of the air blowing nozzles in the film running direction.