We analysed the high resolution spectra of a RU Cam , classified as W Vir type star .
The atmospheric parameters of RU Cam were estimated T _ { eff } =5250 K and \log g =1.0 .
The hydrogen deficiency of RU Cam was not confirmed .
The iron abundance , [ Fe/H ] = -0.37 , is close to the solar one .
Abundances of most other elements are also close to normal .
We found considerable excesses of carbon and nitrogen : [ C/Fe ] =+0.98 , [ N/Fe ] =+0.60 .
The carbon to oxygen ratio is C/O > 1 .
The carbon isotopic abundance ratio is equal to ^ { 12 } C/ ^ { 13 } C=4.5 .
For sodium a moderate overabundance Na/Fe=+0.55 was obtained .
For two moments of observations we found close heliocentric velocity values , v _ { r } = -21.7 \pm 0.8 and -23.1 \pm 1.0 km s ^ { -1 } .
Both spectra contain a peculiar feature – an emission component of Na I doublet which location agrees with the radial velocity from the bulk of metallic lines .
For our two observing moments we found no dependence of radial velocities on the formation depth or on excitation energy for metallic lines .