Abstract: In order to understand the environmental quality of soil in the producing areas of the main agricultural products (mandarin orange, tea, vegetable and rice) in Yongchun County, the heavy metal contents of soil in the producing areas of four main agricultural products were determined and analyzed. The ecological risk of heavy metal in soil was evaluated by using the single factor index method and Nemerow synthesis index method. The results showed that:the soil pH in the producing areas of main agricultural products in Yongchun County ranged from 4.34 to 6.37, and the mean pH values of soil in citrus orchard, tea garden, vegetable field and rice field were 4.77, 4.80, 5.14 and 5.15, respectively. The contents of Cd, Pb, Hg, As, Ni, Cr, Zn and Cu in soil were 0.06-0.22, 46.17-76.19, 0.09-0.17, 2.34-4.51, 24.52-28.58, 12.45-30.20, 91.05-120.28, and 27.10-74.10 mg·kg^-1, respectively. The content of cadmium was the highest in the soil of vegetable field, the contents of lead, arsenic, chromium, copper and zinc were the highest in the soil of citrus orchard, and the contents of mercury and nickel were the highest in the soil of rice field. Except that the content of lead in the soil of citrus orchard exceeded the standard, the contents of other 7 heavy metal elements did not exceed the screening value of the national standard GB 15618-2018 ″Standard for Soil Environmental Quality and Risk Control of Agricultural Land (trial)″. The contents of cadmium, lead, mercury, nickel, copper and zinc all exceeded the element background values of Fujian Province, and the order of the superstandard multiples was cadmium>nickel>copper>lead>mercury>zinc, among which the content of cadmium exceeded the standard most seriously. Except that the single pollution index of lead in the soil of citrus orchard was greater than 1, the single pollution index and comprehensive pollution index of other heavy metals were less than 1. This indicated that the soils in the producing areas of the main agricultural products in Yongchun County were not polluted except that the soil in citrus orchard was slightly polluted by lead.