Puppies will recognize their old owners. A dog's memory of its owner is related to the time they spend together. If the owner and the puppy have been together for more than half a year, the dog will establish a deep relationship with the owner and it can remember the owner. But the dog’s shallow memory of its owner is also related to the dog’s memory.

How to make a puppy recognize its owner:

1. Feed the dog its favorite food. After it can accept your approach, you can try to gently Stroke it.

2. After bringing your dog home, it is best to take it everywhere to familiarize yourself with the environment, and take it out for walks often so that it can slowly adapt to the new environment. You can communicate more with the dog and let the dog slowly understand what you mean.

3. When feeding the dog, try to squat down. Reducing its field of vision will help reduce its defensive psychology.