The invention relates to a medicated diet sea cucumber can and a processing method of the medicated diet sea cucumber can. The processing method comprises the steps of cooking sea cucumber, cooling, cutting off sea cucumber tendons of the sea cucumber or sea cucumber pieces, and soaking the sea cucumber or sea cucumber pieces at low temperature; desalting by soaking to obtain kelp pieces; adding the sea cucumber or the sea cucumber pieces, the kelp pieces, traditional Chinese medicine extracting solution prepared by taking radix astragali, angelica sinensis, Chinese yam, barbary wolfberry fruit, grape seeds, fructus amomi, poria cocos, prepared rehmannia root and radix paeoniae alba as raw materials, and seasoning liquid prepared by taking table salt, sugar, monosodium glutamate, ginger, green onion, cooking wine and water as raw materials into a can, exhausting, sealing, sterilizing and cooling to obtain the medicated diet sea cucumber can; the medicated diet sea cucumber can comprises the following components by weight percent: 40-50% of sea cucumber or sea cucumber pieces, 5-15% of kelp pieces, 5-15% of traditional Chinese medicine extracting solution and 30-40% of seasoning liquid. The medicated diet sea cucumber can is unique in flavor, delicious in taste, rich in nutrition, tender and elastic in mouth feel and chewable, and has the nourishing and health care effects of tonifying qi, nourishing blood, enhancing immunity, resisting fatigue, etc. According to the preparation method, the technology is reasonable and the operation is simple.