The invention relates to a processing technology of nine-steamed nine-treated sesamum indicum seeds. The processing technology comprises the following steps of (1) performing cleaning: thoroughly cleaning sesamum indicum seeds, and scooping away sesamum indicum seeds which float on the water surface and are not full, with water; (2) performing steaming and drying in sunshine for the first time: performing steaming for the first time for 4 hours, taking out the steamed sesamum indicum seeds, and performing basking until outer covers are slightly dried; (3) performing repeated steaming and drying in sunshine: by a method of performing steaming and drying in sunshine for the first time, performing steaming and basking once again until the outer covers are slightly dried, and performing repeated steaming and basking for 9 times, until the surfaces are black and moistening, and after seed coats are twined to be open, yellow appears; and (4) performing stir-frying: stir-frying qualified sesamum indicum seeds which are obtained through steaming to generate fragrance, and performing airing for cooling so as to obtain the nine-steamed nine-treated sesamum indicum seeds. The processing technology is simple, the processing condition is mild, the cost is low, the time consumption is short, the processed nine-steamed nine-treated sesamum indicum seeds are flat oval, are slightly bulged, have oil fragrance, have the efficacy of tonifying the liver and the kidney, benefitting essence and blood and moisturizing the intestine dryness, and are used for deficiency of the essence and blood, dizziness, tinnitus and deafness, premature graying hair, hair loss after ill and constipation due to intestinal dryness, and some nine-steamed nine-treated sesamum indicum seeds have burst masks.