The invention discloses a paludina intercropping technology. The technology comprises the following steps of 1 breeding pond management; 2 disinfection treatment, wherein 10-15 days before paludina breeding, paludina is put into a disinfectant to be soaked for 3-5 h every 2-3 days, and 7-10 days before loach and grass carp breeding, loach and grass carps are put into suspension to be soaked for 4-8 h; 3, intercropping management, wherein the paludina is subjected to stocking according to the density of 30-45/m<2>, the loach is subjected to stocking according to the density of 20,000-30,000/667 m<2>, the grass carps are subjected to stocking according to the density of 2,000-4,000/667 m<2>, after mixed intercropping is conducted for 30 days, protein feed is used for feeding twice a day, the dosage of the protein feed is 33-50 kg/667 m<2> each time, and zooplankton is fed according to the dosage of 3-5 kg/667m<2> every 3-5 days. According to the paludina intercropping technology, the symbiotic ability of all intercropping varieties can be improved, the yield is greatly increased, and then the economic efficiency is improved.