The invention discloses a production process of an instant delicious croaker, which comprises the following steps: putting a live croaker in a pond for temporary rearing, firstly putting refined salt of which the weight is 0.7-1.3% of the weight of water in the pond for temporary rearing, carrying out temporary rearing for 20-40h, thoroughly draining the water in the pond, injecting clear water, and feeding the croaker with Chinese herbal medicines for 1-2 days so as to obtain a first prefabricated material; splitting for killing the first prefabricated material, removing the viscera, soaking the treated first prefabricated material in clear water, carrying out natural airing, and carrying out drying until the water content is 6-15wt% so as to obtain a second prefabricated material; mixing and boiling shrimps, cassia bark, honey, Chinese prickly ash, cumin powder, oyster sauce, ginger slices, rock candies, rum, soy sauce, table salt, monosodium glutamate and water, adding the second prefabricated material, performing continuous boiling, cooling the obtained material to room temperature, continuously soaking the obtained material for 120-160min, and taking out the obtained material so as to obtain a third prefabricated material; and coating the third prefabricated material with rapeseed oil, feeding the third prefabricated material coated with rapeseed oil into an oven for baking, putting the baked third prefabricated material in an aluminum foil bag, and carrying out vacuum sealing and sterilizing so as to obtain the instant delicious croaker.