A continuous culture device of newly-hatched larva fish bait fairy shrimps comprises a tank body, wherein a spray head, an egg adding port, a first through tube and a hole are formed at the top of the tank body; a stirrer is arranged inside the tank body; one end of a stirring rod of the stirrer extends out of the top of the tank body through the hole; a second through tube is arranged in the middle of the side wall of the tank body; a third through tube is arranged at the lower part of the side wall of the tank body; and a fourth through tube and a fifth through tube are arranged at the bottom of the tank body. By adopting the structure that the spray head and multiple through tubes with different functions are arranged on the tank body, the continuous culture device of the newly-hatched larva fish bait fairy shrimps can effectively discharge shells of fairy shrimps, dead fairy shrimps and other waste residues, can conveniently and quickly supplement oxygen, nutrient solution and other nutrients into the tank body, and can well achieve continuous culture of the newly-hatched larva fish bait fairy shrimps.