New spectrum of the peculiar star FG Sge in a deep minimum of light was obtained by V.Klochkova, S.Yermakov and V.Panchuk with the echelle spectrometer PFES BTA on June 19, 1998. Due to strong weakening (about 6 mag) of a photospheric spectrum of the star we can see the spectrum of the nebulae (emission in HI, NII), the spectrum of cold envelope (emission bands of the molecule C2, atomic emissions) and the high velocity spectrum of the NaI doublet.