The ruling is the latest in a saga that has seen animal rights groups fight in court to block the cull, arguing that control methods should favour keeping the animals alive.
During proceedings at Quebec superior court the judge heard from experts about how best to deal with an overpopulation of deer at the Michel-Chartrand park in Longueuil.
Famous French actress and animal rights activist Brigitte Bardot has written a letter to Longueuil Mayor Catherine Fournier to denounce a crossbow hunt planned in Parc Michel-Chartrand. Fournier announced the city was moving forward with the measure in July, arguing it was necessary due to the overpopulation of deer in the small park.