The invention relates to a method for culturing soft-shell
green crabs indoors by using a cage. The soft-shell
green crabs are cultured by using a
pool made from glass or
cement or a rectangular plastic bucket or a glass-steel bucket, and water is injected in the
pool, bucket or cylinder to reach 30cm. The method comprises the following steps of: catching 50-250g of
green crabs which do not finish reproductive molting from a culturing
pool or in the field as molting crab seedlings, conveying living bodies of the molting crab seedlings to a molting pool and culturing, respectively putting each crab in a capped plastic cage with 21.5cm length, 15.5cm width and 35cm height or a plastic tank with holes, and then putting the plastic tank with holes or the plastic cage into a culturing pool and culturing, wherein the temperature of pool water is 20-32 DEG C, the
salinity is 15-30, the pH value is 7.5-8.8, and the dissolved
oxygen is more than 5mg / L;
casting baits according to 5-10 percent of crab weight at nightfall or in the early
morning everyday; and checking the molting or death situation of the crabs every 2-4h, moving the soft-shell crabs away, temporarily storing the living bodies in low-temperature
water body, or quickly freezing and storing the living bodies for sale. The invention has the advantages of mutual green crab killing prevention, high crab
survival rate, low soft-shell crab culturing cost, high
appendage completion ratio of crabs and high soft-shell crab quality.