The Shuangjiangkuo-Jiangjunmiao fluorite ore deposit occurs in Early Yenshanian granites in the foldsystem of south China. The average homogenization temperature of inclusions in fluorite is 250℃. Thecontents of CO;and CH;in the inclusions tend to increase from southeast to northwest as well as in thevertical direction. Liquid in the inclusions is composed mainly of CaO, F and Cl with minor SO;. All this hascontributed a lot to the formation of fluorite as well as to wall-rock alteration. This ore deposit is evidenced tobe mesothermal in origin.