The miniature Australian Shepherd first came from America's ranches as a stock dog and guard. This dog could move livestock long distances and keep a careful eye on them. These animals always have strong herding instincts, and are intelligent, energetic, and easy to train. This dog should not be thought of as a stand-in for the Australian Shepard. Also, do not think the word "miniature" means that the dog is tiny or has a reduced drive or personality.
The miniature Australian Shepard can be a very devoted animal in the right family. They really like to be a part of family activities. They are good with other pets and are usually gentle with children. They also are easy to train. But this breed has a strong history of working, so the dog will thrive most in a family that takes the time to train it well and give it exercise. This breed is defined by strong herding and guardian instincts, and possesses a reserved temperament. These dogs are very loyal to their families, so do not expect them to be outgoing with strangers. Teaching the dogs to socialize early is key to them being friendly with strangers.
The miniature Australian Shepherd is a fairly healthy breed. But you need to sort out a few issues with the breeder you select. Hereditary eye problems are very common, such as iris and retinal colobomas and juvenile cataracts. The more severe of these problems can lead to blindness. 
To help prevent these problems, the certification of unaffected breeding stock by the group called the Canine Eye Registry Foundation was founded. However, certain issues are of concern and should be discussed with your breeder. If you want to buy this breed, you should find a breeder who has shown both the sire and dame of a litter as having good eyes. They puppies also should be certified at 8 weeks old.
Another problem is hip dysphasia, which is a crippling defect of the hip joint. This has been recognized in almost all dog breeds, and this one is not an exception. Your breeder should perform a radiograph and get certification from the Orthopedic Foundation of America. Breeders must cooperate in this effort to certify the breeding stock of these dogs. This is essential in order to keep the gene pool of the breed in good condition and assure a bright future for these wonderful dogs.
These dogs require a moderate amount of exercise to stay happy. They are energetic animals but the dog's small size means that it can get its fill of exercise faster than other larger breeds. Often the dogs are relaxed and at ease when inside with their families. But the dog also enjoys intense activities, including jogging and hiking. Some owners decide to teach the dog hide and seek and give them fun toys to keep them from getting bored when they cannot get enough of exercise. As with many dogs, boredom is a big reason why the miniature Australian Shepard can get destructive or bark excessively.
