The chemical composition and microstructures of four faience beads from the Marquis Guo state Cemetery and dated to the Western Zhou to Spring and Autumn periods, were analyzed using a scanning electron microscope equipped with energy dispersive Xray (SEMEDX) and a Raman microspectroscope. Little flux in the matrix of the interaction layer of the beads due to aging was found. Analysis of the microstructures indicated that the main colorant element used in the glaze is copper. In addition, the hydroxyapatite on the outer layer of the beads was probably derived from the dead body (bones), and the cinnabar came from the basement of the tomb.