The present investigation was done to clarify the histological and histochemical characteristics of the well-developed prostate gland in the local adult dogs (Canis familiaris). The tissue specimens were taken from the prostate gland. Routine histological techniques and stained processed the samples. Histologically, the body of the prostate in resting was characterized by abundant amounts of fibrous tissue with minor glandular lobes surrounded by a very thick fibromuscular capsule. Each lobe was composed of numerous variable size lobules that contained several alveoli lined by simple cuboidal cells. While stimulating, the gland is characterized by much glandular tissue, thin fibro muscular capsule, and thin interlobar connective tissue. The disseminated part of the prostate gland was composed of diminutive scattered small size glandular lobules within the subepithelial cavernous tissue of the urethra about 1-2 cm post prostate body. Histochemical, the stimulating prostate showed marked intense magenta color, which referred to the presence of both acidic and neutral glycoprotein secretory products when stained with combine Alcian blue at 2.5 pH with PAS stain. In conclusion, this study showed the differences between the prostate glands in the resting and stimulating status in local breed dogs.