Fluorite contents (including total fluorite,exchangeable fluorite,and water-soluble fluorite) in 400 paddy soil samples collected from the Hang-Jia-Hu Plain,Zhejiang Province,China,were determined and the guideline for evaluation offrelated environmental quality of the paddy soils in the region was studied.Results indicate that both the contents of total fluorite and exchangeable fluorite followed the normal distribution,and that of water soluble fluorite fit the logarithm normal distribution.The average content of total fluorite in the paddy soils developed from fluviatile deposit and marine deposit was 333.1mg kg^-1 and 324.3 mg kg^-1,respectively.The content of wate-rsoluble fluorite and exchangeable fluorite in the paddy soils developed from marine deposit was 1.55 mg kg^-1 and 4.03 mg kg^-1,respect ively.The content of total fluorite in the cultivated layer was higher than that in subcultivated-layer,regardless of soil types (Percogenic paddy soil,Hydrogric paddy soil,Gleyed paddy soil,and Submergic paddy soil),whereas it was the other way round with water-soluble fluorite.It is tentatively recommended that the guideline for evaluation of Frelated environmental quality of the paddy soils in the Hang-Jia-Hu Plain is 413.9 mg kg^-1 for total fluorite and 2.54 mg kg^-1 for water soluble fluorite.