Introducing a Cat and a Dog — The Slow, Safe Way
General information only — not veterinary advice
Go slow from the very start
Introducing a dog to a cat can be risky. It should be carefully planned, and you should proceed slowly.
Not all dogs are a good fit for a home with small animals, and that is okay.
For the first few days, keep the cat and the dog completely separate, with a door between them at all times. Keep the cat in a room the dog cannot reach.
Use this time to bond with your animals, and to teach or review simple cues with the dog, like sit, look, and touch. Also use this time to learn both animals' body language, so you can tell when your dog becomes overly excited or predatory toward the cat, and when your cat becomes overly fearful of your dog.
⚠ Warning signs — read this first
The signs below are warning signs that a dog likely cannot safely live with small animals:
- Intense staring at other animals, especially with stalking — slow forward movement, with the head held low.
- A history of seriously injuring another animal.
- Growling or snapping when approached while holding food, toys, or chew bones.
- Obsessively chasing or pulling toward squirrels, rats, or rabbits on walks.
- Becoming uncontrollable when excited.
If any of these apply to your dog, the ASPCA strongly recommends consulting a certified dog behavior consultant and/or a veterinary behaviorist.
Step One — Scent Swapping
Bring something with the other animal's scent on it to each animal, and let them get familiar with the scent.
Give a tasty snack while the dog investigates the smell, so the dog links the scent with a good experience.
Swap the scent items daily, so the scent stays fresh.
When neither animal seems overly interested in the other animal's scent anymore, move on to the next step.
Step Two — Visual Contact
The animals still stay separated. During introductions, keep them as far apart as possible, so both are more likely to stay calm.
The cat stays in its secure room, behind a secure gate. Do not hold the cat. Let the cat choose whether to come closer.
Keep the dog on a leash, even with the gate in place.
Reward each animal with extra tasty treats for calm behavior.
If the dog stares fixedly at the cat for longer than 3 seconds, redirect the dog's attention. Use the look or touch cues, or a high-value treat.
Step Three — Reducing Distance
Gradually reduce the distance between the animals, over the course of several weeks. The dog stays on a leash.
Reward calm behavior at this closer distance.
Watch both animals for behaviors that show fear or anxiety. If you see any of those behaviors, slow down the introduction process — you may even need to take a step back.
Step Four — Supervised Contact
Carefully and closely supervise the dog whenever the dog is near the cat.
Never leave your pets loose together unsupervised.
Even if you are confident about your dog's behavior toward your cat, the ASPCA still strongly suggests that you do not leave them together unsupervised when you are not home.
Always reward both animals for calm behavior.
If your dog does not guard food or toys, you can give the dog a stuffed Kong or a chew item to help create and reinforce calm behavior around the cat.
Slow down — or step back
There is no need to rush any step. If you see behaviors that show fear or anxiety in either animal, slow down the introduction process. Taking a step back is okay, and it is part of doing this safely.
Sources
- ASPCA — “Introducing Dogs to Small Pets and Cats” — aspca.org/pet-care/general-pet-care/introducing-dogs-small-pets-and-cats
Checked November 2026.
General information only — not veterinary advice