The invention discloses a method for preparing high-value feedstuff for aquatic products by using microalgae and artemia salina. The high-value feedstuff for the aquatic products is prepared through culturing nauplii of artemia with the microalgae, and then, carrying out collecting, sterilizing, freeze-
drying and crushing, wherein the microalgae comprise at least one of
dunaliella salina,
chlorella salina,
isochrysis galbana,
nannochloropsis oculata and platymonas subcordiformis. According to the method disclosed by the invention, the specific high-value microalgae serve as a unique
food supply of the nauplii of artemia, a one-step food cycle culture mode is employed, the microalgae have multiple nutrients and a high value, can be used for promoting and improving the growth, development and
immunity of the artemia salina and have the characteristics of high artemia salina
survival rate, high nutritive value, environmental-friendliness, safety and simple culture process; and due to aftertreatment, the appearance, color and luster of the artemia salina can be completely reserved to the maximum, the damage to the nutrients is less,
nutritive values for the feedstuff for the aquatic products are reserved relatively greatly, and the prepared feedstuff for the aquatic products is rich in
nutrition and relatively low in cost, does not pollute culture water and has an application prospect.