Zinc sulfide microspheres are synthesized via a hydrothermal method, using surfactant P123 as template, and a possible mechanism of P123 as template for fabricating zinc sulfide microspheres was proposed. TEM, XRD, N₂ adsorption-desorption isotherms and FT-IR spectra were used for characterization. It shows that the zinc sulfide microspheres with diameter of 500～600 nm is comprised of ZnS nanocrystals with diameter of 6～7 nm. It is not only smooth and round, but also monodispersed. FT-IR spectra show that it is transparent from 4000 to 400 cm^－1. Therefore it is potential in many other fields such as optics, electronics, magnetics and so on.

Key words: zinc sulfide microspheres, surfactant P123, monodispersed, hydrothermal method