Abstract:In order to solve the problem that the rice-shrimp(Procambarus clarkii) rotation mode fails,and make full use of the mutually beneficial symbiosis between organisms,effectively reduce the rice diseases and weeds,give full play to the efficiency of rice field wetland cultivation,and form an all-weather,multi-level ecological system of mutual economic symbiosis,a new model of comprehensive cultivation of rice and multi-fish(rice-Oujiang color carp-Procambarus clarkii) which combined of the rice-shrimp rotation and rice-fish farming was tesed in Chongming District of Shanghai from Aguest 2020 to December 2021.The result showed that the average output value of the new model was 150 112.5 RMB/hm2 which was 26.84% and 159.60% higher than the traditional rice-shrimp rotation and rice-fish farming model,respectively.The result proved that the new model of comprehensive cultivation of rice and multi-fish could significantly improve the economic benefit.