To provide a laver net treatment ship capable of suppressing liquid dripping of an acid stock solution from a discharge part when supply of the acid stock solution is stopped.SOLUTION: A laver net treatment ship comprises: an acid treatment tank for storing an acid treatment liquid； and a roll provided in the acid treatment tank, and to which a laver net to which laver is adhered, is wound, and the laver net treatment ship further comprises: an acid stock solution supply pipe which is provided on a position not interfering the laver net wound to the roll and above a liquid level of the acid treatment liquid, in a substantially horizontal manner, and supplies the acid stock solution to the acid treatment tank； and an acid stock solution supply unit for supplying the acid stock solution to the acid stock solution supply pipe. The acid stock solution supply pipe comprises a plurality of discharge parts in a longitudinal direction of the acid stock solution supply pipe, the discharge parts comprise respectively, a discharge pipe, the discharge pipe has a discharge hole.SELECTED DRAWING: Figure 1【課題】酸原液の供給が停止された際の、吐出部からの酸原液の液だれが抑制される海苔網処理船を提供する。【解決手段】酸処理液を貯留する酸処理槽と、酸処理槽内に設けられ、海苔が付着した海苔網を巻き付けるロールと、を備える海苔網処理船であって、酸処理液の液面よりも上方かつロールに巻き取られた海苔網とは干渉しない位置に、略水平に設けられ、酸原液を酸処理槽に供給する酸原液供給管と、酸原液を酸原液供給管に供給する酸原液供給装置とを備え、酸原液供給管には、酸原液供給管の長手方向において複数の吐出部が設けられ、吐出部には、吐出管が設けられ、吐出管には、吐出孔が設けられている。【選択図】図１
