The data include the spectroscopic and photometric data of 29 extremely luminous star clusters in the halo of M31. The spectral data were obtained by exposing for 3600 seconds with Xinglong 2.16-meter telescope. The spectral resolution is approximately 620, and the wavelength coverage ranges from 400 nm to 675 nm. The photometric data were remeasured using multiple survey data, including the NUV and FUV data from GALEX, the u-sages and v-sages data from the SAGES survey, the g, r, i, z, and y data from Pan-STARRS, and the J, H, and Ks data from 2MASS.