Abstract: In recent years, due to the high cost of land transfer, the rapid increase of agricultural resources, the increase of labor costs year by year, and the serious aging of labor, the pressure on grain production continues to increase. As a new compound agro-ecological system, rice-fish symbiosis not only improves the quality and price of rice, but also increases the income of aquaculture, and realizes the purpose of increasing the income of grain farmers in a limited space. Jiaxing Yueel Agricultural Technology Co., Ltd. and Shanghai Academy of Agricultural Sciences jointly carried out a technical demonstration of“rice crucian and ricefield eel”in Pinghu, and through constantly summarizing experience and refining technology, effectively explored the technical specifications of ricefishing co-cropping, which can effectively guide and guide more farmers to carry out a new model of rice production and achieve both increased production and income.