  Generalized parton distributions at large $x$ are studied in perturbative QCD
approach. As $x\to 1$ and at finite $t$, there is no $t$ dependence for the
GPDs which means that the active quark is at the center of the transverse
space. We also obtain the power behavior: $H_q^\pi(x,\xi,t)\sim
(1-x)^2/(1-\xi^2)$ for pion; $H_q(x,\xi,t)\sim (1-x)^3/(1-\xi^2)^2$ and
$E_q(x,\xi,t)\sim (1-x)^5/(1-\xi^2)^3f(\xi)$ for nucleon, where $f(\xi)$
represents the additional dependence on $\xi$.
