Soil samples were collected each year from 2002 to 2006 from the tobacco-growing soils in Kunming before transplanting tobacco seedlings to the fields, and pH values and the contents of organic matter, rapidly available N, P and K, exchangeable Ca and Mg, available S, Zn and B, and Cl- were measured. The results showed that during the period the mean soil pH value increased, the area percentage of soil with pH＞7.0 increased, constituting of about 40% of the total area, while about 25% of soil with pH ＜5.5, but soil pH was still at the suited level. The mean contents of organic matter and available sulfur increased and exceeded the desirable levels, no soil with deficient sulfur. The content of available boron increased, but still about 70% of soil with B deficient. The contents of rapidly available nitrogen, phosphors and potassium decreased a little, but generally were at suited levels or a little higher. The area percentages of soils with exorbitant rapidly available nitrogen, phosphors and potassium decreased, the area percentages of soils with deficient phosphors and potassium increased, about 7% of soil with phosphors deficient and about 1/3 of soil with potassium deficient. Exchangeable magnesium and available zinc changed little, but generally were beyond the desirable levels. The area percentage of soil with magnesium deficient increased, about 13% of soil with magnesium deficient while only about 3% of soil with zinc deficient. The content of exchangeable calcium decreased, but most soil were still beyond the desirable level. Although the content of Cl- increased, the mean content of Cl- was still at the suited level but the area percentage of soil with Cl- content ＞30 mg/kg increased greatly.