  Motivated by black hole experiments as a consequence of the TeV-scale gravity
arising from modern brane-world scenarios, we study the absorption problem for
the massive scalars when the spacetime background is a $(4+n)$-dimensional
Reissner-Nordstr\"{o}m black hole. For analytic computation we adopt the
near-extreme condition in the spacetime background. It is shown that the
low-energy absorption cross section for the s-wave case holds an universality,
{\it i.e.} the absorption cross section equals to the area of the black hole
horizon divided by a velocity parameter.
