Freshwater lobster has the advantages of fast growth, large size, wide eating habits, strong adaptability, delicious meat and high economic value, and has broad market prospects. Breeding freshwater lobster is a good project with low investment, high benefit and simple operation. I. Pond conditions Freshwater lobsters are not strict with pond conditions, so they should choose a place with sunny ventilation, soil to ensure water conservation and pollution-free water sources. The pond size is generally 5~ 10 mu, the water depth is above 1.5m, the sand and mud bottom is flat, and the slope ratio of the pond and dam is1:3 ~ 4, which is convenient for water intake and drainage and theft prevention. As a hidden habitat for lobsters, some aquatic plants can be planted in the pond or a certain number of shelters such as stones, bricks and tiles can be placed, accounting for about 1/3 of the total water surface. 2. Before stocking shrimp fry, clean the pond with quicklime 100~ 150kg/ mu to kill harmful fish and harmful aquatic insects in the pond and avoid enemy invasion. After disinfection for 3 days, water is fed, and after 10 day, 300~500kg/ mu of decomposed organic fertilizer is used to fertilize water, so as to cultivate rich plankton and provide sufficient bait for shrimp seedlings. Generally, shrimp seedlings with a body length of 3~5cm, strong physique and no diseases are selected for breeding, and the stocking density can be controlled at 2,000 ~ 3,000 shrimps/mu, and the stocking density can be appropriately increased for shrimps with small specifications. Because this shrimp bullies the weak and fears the small, the specifications of the larvae stocked in the same pond should be neat. Avoid excessive temperature difference between water and seedlings, and pool in the evening or at dawn. Before releasing the seedlings, slowly add a small amount of pond water into the seedling transport container until the water temperature of the container is close to that of the pond water, and then gently pour the shrimp seedlings into the pond water. Iii. Feeding management 1. Feeding with bait. Freshwater lobsters are omnivorous. They like to eat animal bait such as fresh miscellaneous fish, snails, earthworms and internal organs of livestock and poultry, and plant bait such as soybeans, bean cakes, bran, corn and fresh aquatic plants. They can also be fed with compound feed for shrimps. It can be seen that the bait problem of freshwater lobsters is easy to solve. According to the general experience, the feeding amount of the whole day should be based on satiety, eating and leaving no residual bait. Generally, shrimps are fed at 20~25% of their body weight, middle shrimps at 15~20% of their body weight and prawns at 10~ 15% of their body weight twice a day, morning and evening. Because freshwater lobsters mainly eat at night, 70~80% of the whole day's bait is fed at night, and the bait should be thrown in the shallow water beside the pool. Feeding should be timed, fixed-point, quantitative and qualitative. Each pond can be equipped with 2~4 bait observation stations to observe whether the bait is finished every morning to determine the feeding amount at that time. Too little bait will inhibit the growth of lobsters or kill each other because of hunger, while too much will increase the cost and worsen the pond environment, which is unfavorable to the growth and shelling of lobsters. The bait can be general prawn bait or lobster special bait. 2. Water quality management. The water in the pond requires fresh water quality, transparency of 30~40cm, PH value of 7~9, and dissolved oxygen greater than 4g/L.. Pay attention to the water quality and the environment at the bottom of the pond in the process of breeding, so as not to make it worse. When the dissolved oxygen content in the water is very low, the water quality deteriorates, or in severe weather such as thunderstorm, sultry day and even cloudy day, it is necessary to reduce or stop feeding. When the weather is too cold or too hot, in order to prevent the extreme temperature, the pool water can be deepened appropriately to stabilize the water temperature at the bottom of the pool. In the high temperature season from June to August, the water is changed every 5 to 7 days, and the amount of water changed each time is 20 to 30% of the pool water. If it is inconvenient to change the water, fresh water can be added regularly. 3. Disease control. Freshwater lobster has stronger disease resistance than aquatic products such as river crab and freshwater shrimp, but its disease control cannot be taken lightly under artificial breeding conditions. Adult or young shrimps must be disinfected before they go into the pond to prevent pathogens from being brought into the pond. During the normal feeding period, the water body is disinfected regularly, mainly with quicklime, and the whole pool is sprinkled with quicklime10 ~ 15 kg/mu of dissolved water every15 days, which not only plays the role of disease prevention and treatment, but also is beneficial to the shelling of freshwater lobsters. In the hot summer season, drugs such as multivitamins and calcium tablets are added to the bait every 15 days to enhance the immunity of freshwater lobsters. Pay attention to patrol the pool every day to achieve early detection, prevention and treatment of diseases. 4. Catching and harvesting freshwater lobsters grow fast. They can be harvested and marketed in the same year when they are stocked in the same year, and can be harvested by net catching or dry catching. Net catching: As lobsters mainly feed at night, the net can be placed in shallow water near the pool before evening, and the tail of the net leaks out of the water, and the shrimp can be collected from the net the next morning. Dry fishing: after repeated net fishing, the water in the pool is finally drained, and the net is used to catch it. If the aquaculture yield is high and a large number of products are listed in batches, trawling or casting nets can also be used for fishing. Harvest is better when it is dark at night.