In this paper, Cesium Tungsten Bronze (CsxWO3) powders were synthesized by sol-gel method. The CsxWO3 powders were systematically studied for the impacts of the dispersant, the calcination temperature and the ratios of n(Cs) to n(W) on the crystalline phase, micromorphology, the average size, and the optical performance. The CsxWO3 powders were characterized by thermal gravimetric analyzer (TGA), X-ray diffraction (XRD), scanning electron microscope (SEM), and UV/VIS/NIR spectrophotometer. Powders of Cs0.3WO3 could be obtained with higher crystallinity, well dispersion, and improved near infrared shielding properties under the following preparation conditions: PEG-600 as dispersant, calcination temperature of 600℃, and n(Cs): n(W) = 0.33:1. The visible light transmittance of the CsxWO3 coating is more than 80% and the near infrared shielding rate is about 70%.