Cd1-xZnxS nanorod arrays are synthesized by chemical vapor deposition using high purity cadmium sulfide and zinc powder as source materials. The synthesis of Cd1-xZnxS is confirmed by Raman spectrum. Scanning electron microscope and fluorescence spectroscope respectively show that the products are regular nanorod arrays, and the Cd1-xZnxS nanorod arrays have an asymmetric broad emission peak between 480~590 nm. By Gaussian fitting, the broad emission peak is fitted to peaks of 473 nm, 522 nm, 560 nm, 595 nm and 607 nm, and the luminescence mechanisms are discussed respectively.