  In this paper, we obtained the Dunkl analogy of classical Lp Hardy inequality
for $p > N + 2\gamma$ with sharp constant
$\left(\frac{p-N-2\gamma}{p}\right)^{p}$, where $2\gamma$ is the degree of
weight function associated with Dunkl operators, and $L^p$ Hardy inequalities
with distant function in some G-invariant domains. Moreover we proved two sharp
Hardy-Rellich type inequalities for Dunkl operators.
