Abstract: This paper mainly carried out the experiment on the mode of rotation of crayfish and mandarin fish. From January to February, the pond was planted with water and grass, from February to March, and shrimps were put on. In March- April, the crayfish were fed. In May-June7, the shrimps were raised and listed, and then the mandarin fish seedling and bait fish were magnified, and the mandarin fish was quickly grown into commercial fish in the July-Dcember month. Through intensive management and off-season rotation, the effective utilization time of the pond has been increased, thus greatly improving the economic income of pond culture. The results showed that the net profit of the cultured crayfish was 4 877.3 yuan per 667 m² and that of the cultured mandarin fish was 2 385.6 yuan per 667 m². The total profit of 667 m² is 7 262.9 yuan. This mode is mainly based on pond culture of crayfish, and makes full use of the difference of the growth cycle of the breeds. This model put different breed in the same pond in the wrong season of the same pond, and realized one water dual use and one pool double harvest, which saved the resources and achieved the comprehensive benefit of ecological environmental protection.

Key words: crayfish（Procambarus clarkii）, mandarin fish（Siniperca chuatsi）, pond, rotation technology, high efficiency cultivation