The invention relates to a fingerling
desalination method for the freshwater culture of a tiger
prawn, in particular to the culturing of the
seawater economic
prawn in freshwater, belonging to the
aquaculture technical field. The invention is characterized in that the method comprises the following technique steps: preparing a temporary
prawn larva breeding pond; cleaning up the temporary prawn
larva breeding pond; sterilizing the temporary prawn
larva breeding pond; fertilizing; artificial
oxygen increasing facility; the pond affusion and
salinity regulating; temporary prawn larva breeding; prawn larva
stocking and breeding; prawn larva desalting and
salinity regulating; prawn larva cultivating; cleaning up a main breeding pond; communicating the main breeding pond and the temporary prawn larva breeding pond; the freshwater breeding of the prawn larva. The invention can prevent the prawn larva from dying resulted from the sudden change of an
osmotic pressure after directly entering the freshwater through the desalting process during the temporary breeding period of the prawn larva, leading the tiger prawn to be able to grow from the
seawater into the freshwater after artificial desalting and breeding, which is beneficial to reduce the incidence of the tiger prawn, improve the surviving rate of
stocking and breeding of the prawn larva and increase the culturing yield.