The invention relates to a method for turtle intercropping in a trapa acornis nakano pond. The method includes the following steps of selection and reconstruction of the trapa acornis nakano pond, seeding, turtle breeding and daily managing. Trapa acornis nakano planting and turtle breeding are organically combined, space, land resources and water resources are sufficiently utilized, and special agricultural product production, a water quality improvement through a ecological cycle and beautiful rural reconstruction are organically combined. Data of turtle specifications, turtle density, turtle breeding time and others in the intercropping method are obtained through comparative test screening. While growth of trapa acornis nakano is guaranteed, great economical benefits can be achieved. In addition, after turtles are bred in the trapa acornis nakano pond, plant diseases and insect pests are reduced. Meanwhile, excreta of the turtles and residual feeds are sufficiently provided as fertilizer for the growth of the trapa acornis nakano, so that agricultural cost is reduced, income increasing of farmers is achieved, and the ecological agriculture which saves resources, is environmentally friendly and has sustainable development is achieved.