Purpose: the underwater cage device for cultivating sea cucumber is provided to the cultural sea cucumber in a nature. Construction: the underwater cage device for cultivating sea cucumber includes that it includes a most sides, the framework (110) flowed inside by these tidal muds, one aestivation part (120), it is formed with multiple holes and is arranged on bottom surface, and one cultivation part (130) on, be arranged on the top of aestivation part and including multiple barriers.
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