  In this article, the energy density of plane gravitational wave is studied by
using Einstein and M{\o}ller's prescription of energy-momentum pseudotensors.
The linearly polarized plan gravitational wave solution of Einstein field
equation, which has been defined by Bondi et al., is represented by four kinds
of different coodrinates. The energy distribution of gravitational wave
solution in Einstein and M{\o}ller's prescription are obtained. Particularly
the energy component is zero in null coordinates.
