TL;DR
Your dog isn’t bad, they’re underemployed, and the cat is the most exciting thing in the house. Manage the chase so it can’t happen, teach a real “leave it,” and feed the drive every day with a legal target. Introduce a new cat in stages, leashed, with the cat always holding the high ground, and learn how the drive works in prey drive training. A dog that has already grabbed or hurt a cat needs the red flags section and professional help first.
Who This Is For
- Two-pet homes where the dog stares, stalks, or chases the cat
- Anyone bringing a new cat home to a dog, or a new dog home to a cat
- Owners of high-drive breeds asking if their dog is safe with cats
- People whose dog goes nuts at the neighbor’s cat through the fence
- Cat owners tired of their cat living on top of the fridge
Why Dogs Chase Cats
Dogs chase cats for three reasons, and each needs a different fix. Prey drive is the hunting sequence firing at a small, fast animal, while play is a dog starting a game the cat never agreed to. Guarding is a dog pushing the cat off food, toys, or space, so find which one you have before you train.
Prey drive: quiet and fixed
The ASPCA notes that dogs still chase and grab fast-moving things, pets included, and some bite and even kill if they catch what they chase. It also warns that a predatory dog rarely growls first, so it can seem to come out of the blue. In my client dogs, the tell is stillness: a hard stare, a lowered head, and a slow creep. That is the front of the predatory motor pattern.
Play: loud and bouncy
In my experience, a playing dog is noisy and loose, with bouncy movement and play bows, and it backs off when the cat swats. The cat may not see it as play at all, though. Even friendly chasing can teach a dog that the cat is the best toy in the house. Dog body language breaks down the difference in detail.
Guarding: space and stuff
The ASPCA also notes that many dogs guard their possessions, whether they need to or not. When the chase only starts near the food bowl, a bed, or a toy, you are looking at guarding, not hunting. Feed the pets apart and read resource guarding in dogs.
| What you see | Prey drive | Play | Guarding |
|---|---|---|---|
| Body | Still, stiff, fixed stare | Loose, bouncy, play bows | Stiff over an object or spot |
| Sound | Often silent | Barks, noisy | Growl or freeze |
| Trigger | Cat moving or running | Any time the cat is near | Food, toys, beds, doorways |
| Takes food near the cat? | Usually not | Usually yes | Away from the object, yes |
| Risk level | Highest | Moderate, still stops | Moderate |
These are patterns from my client dogs, not a diagnosis. On a phone, swipe the table sideways.
The Safety-First Plan to Stop the Chase
Stopping the chase is four jobs done in order. Manage the house so the chase can’t happen, teach the two cues that interrupt it, practice at a distance where your dog can still think, and give the drive a legal outlet every day. Skipping the management step is how cats get hurt while the training is still new.
1. Manage the house
- Baby gates or a closed door between the dog and the cat’s room
- A leash or light drag line on the dog indoors while you supervise
- A crate or pen for the dog when you can’t watch
- Cat trees, shelves, and gated rooms the dog can’t reach
The AKC says the cat should always have an escape route, and it says never to leave a new dog alone with your cat until you are sure they won’t have issues. Every chase you prevent is one the dog doesn’t get to practice.
2. Teach “leave it” and “look at me”
Start “leave it” away from the cat. The AKC leave-it method puts a treat on the floor under your hand, marks the moment the dog stops trying, and rewards from your other hand. For “look at me,” the AKC watch-me steps bring a treat up to your eyes and reward eye contact, starting somewhere quiet.
Both cues need to be solid in a boring room before the cat is anywhere near. After that, “look at me” becomes the cue you use the second your dog’s eyes lock on the cat.
3. Work at a distance your dog can handle
Put the cat behind a gate at the far end of a room and your dog on leash. If your dog can look at the cat, look back at you, and take a treat, that distance is working. A dog that stops eating, stares, or lunges is too close, so back up. Close the gap over many short sessions, not in one afternoon.
4. Give the chase a legal outlet
Drive doesn’t disappear because you said no. A flirt pole gives your dog a daily stalk, chase, and catch on a lure, with you deciding when it starts and stops. The AKC self-control guide even lists a flirt pole among the games that help teach a dog to settle. Run it with the cat shut safely in another room, and use the flirt pole impulse control drills to build the off-switch.
You can’t train a dog out of prey drive. You can give the drive a better target than your cat, and teach the dog to stop when you ask.
How to Introduce a Dog to a Cat
Introduce a dog and a cat in five stages: separate rooms, scent swapping, seeing each other through a barrier, a leashed meeting, and slowly reduced supervision. PetMD’s vet-reviewed guide says the process can take a couple of weeks to a few months. Move to the next stage only when both animals are relaxed at the current one.
Slow is safe
Separate rooms
Give the new pet its own room with food, water, bedding, and a litter box for a cat. PetMD says to keep a new pet apart at least three to four days and get a health check.
Swap scents
Swap bedding, and let one pet roam the house while the other is shut away, then rotate. Each learns the other’s smell before they ever meet.
See through a gate
Let them see each other through a pet gate or a propped door, paired with meals, treats, or play. Keep the sessions short and the dog calm.
First real meeting
Meet in a shared room with the dog on a loose leash. Before the dog comes in, the cat needs a high perch or an exit it can reach.
Ease off supervision
Cut supervision slowly as they build a track record of calm behavior. Never leave them alone together until you are sure.
These stages follow PetMD’s dog and cat introduction guide and the VCA five-step introduction, which both say to leash the dog for the first meeting. Progress isn’t always a straight line, so drop back a stage after a bad session.
Stop signs during the introduction
PetMD lists the dog signs to watch: moving slowly, stiffening, fixating on the cat, barking, or lunging. On the cat’s side, watch for crouching, freezing, a flicking tail, pinned ears, hissing, or raised fur. Any of these means end the session calmly and go back a step. For a brand-new rescue, the first two weeks guide covers the settling-in period first.
When a Dog Should Not Live With Cats
Some dogs should not share a home with a cat, and saying so is not failure. A dog that has injured or killed a cat, stalks silently, or can’t take food anywhere near the cat is a serious risk. The ASPCA warns that predatory attacks rarely come with a warning, so good behavior yesterday is no guarantee.
- Your dog has grabbed, shaken, injured, or killed a cat or other small animal
- It stalks the cat silently, with a fixed stare it won’t break for food or its name
- Weeks into the plan, your dog still lunges at the gate every time the cat moves
- The cat is living in hiding and bolts whenever the dog is in the room
If any of these fit, keep the animals fully separated with doors, not just gates. Veterinary behaviorists writing for VCA call predatory behavior toward other pets a dangerous, persistent problem that is unlikely to be cured and must be managed.
When to call a professional
Call for help after any injury, after any red flag above, or if you feel unsafe running the plan yourself. The ASPCA points owners to a board-certified veterinary behaviorist (Dip ACVB), a certified applied animal behaviorist, or a qualified trainer with real aggression experience. Your vet is a good first call and can refer you. The reactive dog training guide explains what that work usually looks like.
A dog that hunts the cat isn’t evil. It’s doing exactly what it was built to do. Your job is to make sure it never gets the chance, and to give that drive somewhere else to go.
Christopher Lee Moran · Working Dog TrainerOne Chase for the Dog, One for the Cat
Two-pet homes do best when both animals get their own hunt, in separate rooms. The dog gets a flirt pole session that ends in a catch, with the cat shut away. The cat gets its own session later, so it burns off drive instead of watching from the fridge. Never run a pole with both animals in the room.
Why a flirt pole and not more walks? A walk doesn’t let the dog chase and catch anything, and chasing is the itch. A pole ends in a real catch, so the dog comes off it satisfied and easier to handle around the cat; if the tool is new to you, start with how to introduce a flirt pole.
The Whimsy Stick for the dog
Dogs 30 lbs and up need the Rugged XL with its 800-lb Dyneema line, which ships free in the US. Dogs 30 lbs and under run the Standard with a 450-lb Kevlar line.
More Chase Problems, Solved
Dogs Chasing Cats: FAQ
How do I stop my dog from chasing my cat?
Manage first so the chase can’t happen: gates, a leash indoors, and a cat room the dog can’t reach. Then teach leave it and look at me, practice at a distance where your dog can still eat, and give the chase a daily legal outlet like a flirt pole, with the cat in another room.
Why does my dog chase my cat?
Usually one of three reasons: prey drive, play, or guarding. Prey drive looks quiet and fixed, play looks loud and bouncy, and guarding happens around food, toys, or beds. Each needs a different fix, so figure out which one you have first.
Is my dog playing with the cat or hunting it?
Playing dogs tend to be loose, noisy, and bouncy, and they back off when the cat swats. Hunting looks still and silent, with a hard stare, a lowered head, and a slow creep. The ASPCA warns that predatory attacks rarely come with a warning, so treat any silent stalking as serious.
How do I introduce a dog to a cat?
Go in five stages: separate rooms, scent swapping, seeing each other through a gate with treats, a meeting with the dog on a loose leash, then slowly reduced supervision. Give the cat high places and exits, and only move forward when both animals stay relaxed.
How long does it take a dog to get used to a cat?
PetMD’s vet-reviewed guide says a couple of weeks to a few months, depending on the pets, and progress is not always a straight line. Plan for weeks, not days, and drop back a stage after any rough session.
How do I introduce a high prey drive dog to a cat?
Slower, with more barriers and more distance. Keep the dog leashed for longer, keep gate sessions short, and give the dog a hard flirt pole session before each one. A dog that still can’t take food or look away from the cat after weeks of work needs a professional’s eyes on it before any off-leash meeting.
Can a dog with high prey drive live with cats?
Many can, with management, training, and time. The AKC says most breeds can live calmly with a cat if they are socialized as puppies and trained to leave the cat alone. It flags terriers, sighthounds, and herding breeds as the groups to watch most closely. A dog that has injured a cat or stalks it silently may need to live apart from cats for good.
Should I use a shock collar to stop my dog chasing cats?
I don’t use one for this. It may interrupt one chase, but it does nothing about the drive underneath, and the ASPCA warns that poorly planned punishment of aggression can make a dog worse. Management, a solid leave it, and a daily outlet work better, and a behavior professional can help with serious cases.
What do I do if my dog catches my cat?
Separate them safely without putting your hands between them, then get the cat checked by a vet right away. Keep the animals fully apart from then on and contact a veterinary behaviorist or qualified trainer before trying any new introduction.
How do I stop my dog chasing cats outside?
Keep the dog on a leash or long line near cats and wildlife, even in a fenced yard, until the leave it is reliable. The AKC notes that recall usually fails once a dog is in full chase mode, so don’t count on calling the dog back mid-chase.
This page is general education from a working dog trainer, not veterinary or behavioral advice. See the exercise disclaimer before starting any new exercise routine.
