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How do I leash train a puppy to walk without pulling?

Short answer

Start as soon as you bring your puppy home: reward them with small treats for staying near you with a slack, J-shaped leash. The core rule for loose-leash walking is that pulling never works: when the leash tightens, stop and plant your feet, wait for slack, then reward and continue.

Sourced from veterinary authorities · not a diagnosis · anything risky goes to a vet.

Who this is for

Puppy and new-dog owners teaching polite, loose-leash walking on a collar or harness.

When this doesn’t apply
  • Serious reactive lunging or aggression toward dogs or people on walks (get a qualified trainer)
  • Choosing or fitting specialized anti-pull equipment for a strong adult puller without guidance
  • Off-leash reliability, which is a separate skill

Step by step

  1. Introduce the gear
    Let your puppy get comfortable wearing a flat collar or harness and dragging a light leash indoors. A front-clip harness can help larger puppies that pull.
  2. Load up on rewards
    Have lots of small treats your puppy loves, a mix of high- and low-value. Treats are what motivate the work, so pay generously at first.
  3. Mark and reward the right position
    Use a marker word like "yes" or a clicker, then treat, whenever your puppy stays near your side with the leash loose. The more this position pays, the more your puppy chooses it.
  4. Stop when the leash tightens
    The moment your puppy pulls, stop and plant your feet. Wait for the leash to go slack in a J-shape and for your puppy to check back, then praise, reward at your side, and walk on.
  5. Build an automatic check-in
    When your puppy reaches the end of the leash, call their name; mark and reward when they look back, until checking in becomes a habit.
  6. Keep sessions short and consistent
    Practice in short, upbeat sessions and stay consistent: never let pulling get your puppy where they want to go, or it undoes progress.

What changes the answer

  • Your puppy's age, size, and how strongly they pull
  • The distraction level of the environment (quiet room versus busy street)
  • Whether everyone walking the dog follows the same no-pull rule
  • The value of the treats and the length or type of leash and harness

Common mistakes

  • Only telling the dog what not to do, instead of rewarding the position you do want
  • Letting the dog reach the destination by pulling, which rewards the pulling
  • Using treats too stingily or too low-value to compete with outdoor distractions
  • Jumping to a busy, distracting environment before the skill is solid indoors

Sources

Common questions

Collar or harness for leash training?
Either can work; many trainers prefer a harness to keep pressure off the neck, and a front-clip harness gives more control for larger puppies that pull.
How long until my puppy stops pulling?
It varies with age, consistency, and distraction level. Progress is faster when every walker enforces the same stop-when-it-pulls rule every time.
What if my puppy just sits or won't move?
Keep sessions short and fun, use higher-value treats to lure a step or two, and reward any forward movement near your side rather than dragging the leash.

Next steps