The invention relates to a production process of instant kelp and Spanish mackerel foods. The production process comprises the following steps: checking and accepting raw materials, thawing the raw materials, removing heads, slicing, removing belly bones, washing, cutting the bones, feeling the bones and checking, disinfecting, burying salt, washing the salt, carrying out primary curing, immersing with vinegar, peeling off skins, carrying out secondary curing, putting blocks, conveying the blocks into a flat plate machine, cutting, immersing kelps, boiling the kelps, putting into a plate, freezing, chopping, bagging, re-weighing, vacuumizing, enabling the products to pass through a metal detector, packaging and storing. The instant kelp and Spanish mackerel foods produced by the process can be instantly eaten; meanwhile, the instant kelp and Spanish mackerel foods do not need to be cooked, so that the loss of nutrition substances is extremely less; and double requirements for nutrition and health of instant consumer goods of consumers are met. Moreover, adopted seasonings are sour and sweet and any preservative is not added, so that the instant kelp and Spanish mackerel foods are safe and healthy. The foods produced by the process are convenient and simple to eat, have a good taste and also have the effects of lowering blood pressure, lowering blood glucose, lowering blood lipid, resisting coagulation and resisting radiation and are of good foods for dietary therapy and health maintenance.