Abstract: According to the physiological and ecological requirements of Trionyx sinensis,a new kind of breeding model was designed after summarizing existed models.Its characters include:joined greenhouses,shallow water,small and no-sand culture ponds,under-water food desks,up-water calefaction tubes,diagonal water-calefaction tube and multifunctional drainage system,etc.

Key words: tea, fuzzy mathematical method, geometric average method, suitability model, climate change., climatic suitability