  We discuss the asymptotic structure of null infinity in five dimensional
space-time. Since it is known that the conformal infinity is not useful for odd
higher dimensions, we shall employ the coordinate based method like the Bondi
coordinate firstly introduced in four dimensions. Then we define the null
infinity and identify the asymptotic symmetry. We also derive the Bondi mass
expression and show its conservation law.

General Relativity and Quantum Cosmology;High Energy Physics - Theory