The Affenpinscher is a balanced, wiry-haired terrier-like toy dog whose intelligence and demeanor make it a good house pet. Originating in Germany, the name Affenpinscher means, "monkey-like terrier." The breed was developed to rid the kitchens, granaries, and stables of rodents. In France the breed is described as the "Diablotin Moustachu" or moustached little devil. Both describe the appearance and attitude of this delightful breed. The total overall appearance of the Affenpinscher is more important than any individual characteristic. He is described as having a neat but shaggy appearance.
General demeanor is game, alert, and inquisitive with great loyalty and affection toward its master and friends. The breed is generally quiet, but can become vehemently excited when threatened or attacked, and is fearless toward any aggressor.