Jordanite is a rare sulfosalt mineral. This paper reports the first discovery of jordanite in the Panlong lead-zinc deposit, Wuxuan County, Guangxi. The jordanite is associated with pyrite, galena, sphalerite and barite appearing as irregular granular grains in pyrite. The optical characteristics in reflective microscope of jordanite are as follows:double reflection is clear, two reflectivities under white light of jordanite are equal to 38.6% and 41.8% respectively; the reflection color is pure white with a little blue tint; reflection pleochroism is weak; heterogeneity is strong. The empirical formula which is determined by the method of EPMA of jordanite is Pb_14.05(As_2.66,Sb_3.23)_5.89S_22.99. The cell parameters are inferred by X-ray diffraction techniques. The results are listed as follows:a=8.91(2) Å, b=31.96(6) Å,c=8.47(2) Å, β=117.77°, V=2 135.49 ų, Z=2, and the space group is P2₁/m. With the use of XRD and EPMA in combination with previous research on the metallogenic epoch of the Panlong lead-zinc deposit, the authors also investigated the origin of the jordanite.