Alloyed tary CdSxSe1-x nanorods have been synthesized by the thermal treatment of Cd2+-dispersed polyethylene glycol 2 000 gel (PEG 2000) with ethylenediamine solution of sulfur and selenium in a sealed system at 180 ℃ for 24 h, in which the ratio of S to Se in the nanorods was controlled by adjusting the relative amounts of the starting materials. Based on the results of experiments, it is found that the CdSxSe1-x nanorods were also synthesized with several sulfur sources by the method. X-ray diffraction (XRD) shows that the alloyed tary CdSxSe1-x nanorods are highly crystalline, and no other phase was observed in these nanorods.