On the Energy of Vaidya Space-time

In this paper we calculate the energy distribution of six cases of Vaidya-solutions in the M{\o}ller prescription. Except the energy complex of M{\o}ller for the monopole solution vanishes everywhere, for other solutions have non-zero energy component, only the energy distributions of the de Sitter and anti-de Sitter solution are independent on $v$. For the radiating dyon solution, the difference in energy complex between M{\o}ller's and Einstein's prescription is like the case of Reissner-Nordstr\"{o}m solution.