In this paper the finite Hankel
transformation of generalized function of a certain space is defined, and an
inversion formula for the transformation is established. The inversion formula
gives rise to a Fourier-Bessel series expansion of generalized functions. The
convergence of the series is interpreted in the weak distributional sense.
An operation transform formula is also obtained, which together with the
inversion formula, is applied in solving certain distributional differential
equations.