PURPOSE: A method for collecting and raising sea-squirts is provided to reduce an aquaculture cost by not using palm strings and prevent dying of the sea-squirts and diseases of the sea-squirts due to a high water temperature by raising the sea-squirts in a deeper area of sea. CONSTITUTION: In an apparatus for collecting and raising sea-squirts, a coating layer(11) is formed on the outer peripheral surface of a rod type of core material(10). The coating layer is made of mixture consisting of cements and bonds for concretes. A covering layer(12) is applied on the coating layer. The covering layer is made of mixture consisting of cements, sands and bonds for concretes. Palm strings are selectively wound on the outer peripheral surface of the covering layer.
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