Black Russian Terriers are naturally aloof with strangers and highly protective of their families, making them excellent guard dogs. They require early and extensive socialization to avoid overprotectiveness or territorial behavior. Though loyal and affectionate at home, they need structure and mental stimulation to stay balanced.
Their thick, weather-resistant coat requires regular grooming to prevent matting and overheating. The breed is not ideal for novice owners or low-activity households, but in the right environment, they make devoted, intelligent companions with impressive work potential.