The present invention relates to a vessel for removing Lee Dongsik birds, more specifically, with a predetermined distance such that the inlet and the outlet the forming member spaced apart from each other is the main support of the disposed pair through which a fluid containing algae, a pair of for injuries to the algae contained in the fluid of the first auxiliary support body, provided in a gateway, a pair of main support body one side of having a pair main support member of the support plates, opening and closing the opening which is located above the main support body It provided in the vicinity of the entrance to generate nano bubbles in the algae-containing fluid nano bubble generator, a coagulant tank, the coagulant injection having the flocculant and the fluid supplied from the coagulant tank to nano bubble generator rear for injecting a mixture comprising the support plate upper and it characterized in that it comprises a skimmer including a pair of rear main support body to collect the nozzles and the injected coagulant and a portion birds It relates to a vessel for Lee Dongsik birds removed.