To provide a training method and a training device of Artemia for training, stably in large quantities, Artemia utilized as biological feed; and to provide Artemia utilized as biological feed.SOLUTION: In a training method of Artemia, training water is supplied continuously into a training tank 20 for storing a breeding solution 1 for training Artemia. A training device 100 of Artemia has the training tank 20 for storing the breeding solution 1 for training Artemia, and supply means (for supplying training water 32 in a training water tank 31 by a training water sending pump 33) for supplying continuously training water 32 into the training tank 20. Artemia has a body length of 3.0 mm or more.SELECTED DRAWING: Figure 2【課題】生物餌料として活用されるアルテミアを安定して大量に養成する方法および養成装置を提供する。また生物餌料として活用されるアルテミアを提供する。【解決手段】アルテミアを養成する飼育液1を入れた養成槽20に、養成水を連続的に供給するアルテミアの養成方法。アルテミアを養成する飼育液1を入れる養成槽20と、養成槽20に養成水32を連続的に供給する供給手段(養成水タンク31内の養成水32を養成水送液ポンプ33により供給)とを有するアルテミアの養成装置100。体長が、3.0mm以上であるアルテミア。【選択図】図2