A 3-year-old, 38㎏, male Golden Retriever dogs was referred to Veterinary Teaching Hospital of Konkuk University because of chronic formation of crust on nasal bridge and planum nasale. Abnormalities of physical examination included hyperkeratosis on the footpad, summetrical alopecia and erythma around olecranon, and crust on nasal bridge and crust on nasal bridge and planum nasale. Results of the hemetological examination showed a mild leukopenia with neutropenia, monocytosis, and mild lumphosytosis. In addition, the result of serum chemistry and thyriod gland profile were normal. Results of fungal and bacterial culture was negative. Acanthocytes on cytological evaluation of nasal crust were observed in direct microscopic examination. Examination of skin biopsy exhibited vacuolation of basal cell layer, degeneration and necrosis of basal cell with defluxion, mild monocytes filtrations between epidermis and dermis, and mild acanthosis with hyperkeratinication. Based on results of examination described above, Discoid Lupus Erythematosus (DLE) was diagnosed.