We present a high resolving power ($lambda$ / $Deltalambda$ = 90,000) and high signal-to-noise ratio ($sim$700) spectral atlas of Vega covering the 3850 -- 6860 AA wavelength range. The atlas is a result of averaging of spectra recorded with the aid of the echelle spectrograph BOES fed by the 1.8-m telescope at Bohyunsan observatory (Korea). The atlas is provided only in machine-readable form (electronic data file) and will be available in the SIMBAD database upon publication.