The composition and quality of domestic and imported sesames and their oil processing properties were compared. The results showed that the kernels of imported sesames were larger and more plump than the domestic varieties. The fat content of domestic and imported sesames had no significant difference, but the protein content of domestic sesames was higher than the imported ones. The imported sesames were rich in ash and oxalic acid. The phospholipid, acid value, saponification value, peroxide value of domestic sesames was lower than imported sesames. Antioxidant components content and oxidative stability of domestic sesame oils were higher than imported kind. Fatty acids composition of sesame oil from different cultivated areas had no significant difference. The favor of domestic sesame oil was better than the imported variety.