The invention relates to an animal breading, in particular to a method for aquaculture of field snails in paddy fields. The method includes: (1) selecting appropriate paddy field conditions; (2) setting appropriate paddy field conditions; (3) paddy field fertilization and sterilization; (4) field snail fry stocking; (5) daily management; (6) catching. The method has advantages that dual-purpose water utilization and dual-harvest fields are realized without damaging original ecological systems of the paddy fields and increasing water resource consumption, so that economic benefits are increaseddirectly; in addition, the field snails are capable of directly eating part of harmful insects in water to partially achieve a function of biological prevention and control of insect damages, and pesticide saving and grain contamination reduction are realized.