The tail of the Black Wolf Dog is moderately set, thick at the base but not curled. When at rest, the tail usually hangs down, but when in motion, the tail is raised and slightly bent. This dynamic change in the tail not only reflects the emotional state of the Black Wolf Dog, but also adds vitality to its overall appearance.

Secondly, the tail characteristics of black wolf dogs in different breeding methods may be different. The original black wolf dog has a thick and straight tail, while the tail of the black wolf dog that has been cross-bred with other dog breeds may be short or slender.