Abstract: In order to evaluate the suitability of nutrients in tobacco-growing soils, soil samples were collected from southern Anhui, and major soil nutrient indexes were comprehensively evaluated based on a cloud model algorithm. The results showed that:1) The nutrient contents (mass fraction) in the tobacco-growing soils were generally suitable, the parameters of the cloud model were Cloud=Ex=0.559 8, En=0.089 2, He=0.016 9. 2) Viewing from the single index of soil nutrients, the contents of total potassium, total phosphorus and available potassium were low, the randomness and fuzziness of soil nutrient distribution were high and the atomized droplets of nutrients were significant, which indicated that the nutrients in tobacco-growing soils in southern Anhui still needed to be balanced. In conclusion, the nutrients in tobacco-growing soils in southern Anhui are generally suitable for tobacco growing, but the contents of potassium and phosphorus were low.