  We study the charmful three-body baryonic B decays with $D^{(*)}$ or $J/\Psi$
in the final state. We explain the measured rates of $\bar B^0\to n\bar p
D^{*+}$, $\bar B^0\to p\bar p D^{(*)0}$, and $B^-\to \Lambda \bar p J/\Psi$. In
particular, the branching fraction of $\bar B^0\to\Lambda\bar \Lambda D^0$
predicted to be of order $2.3\times 10^{-6}$ is in accordance with the Belle
measurement, $(1.05^{+0.57}_{-0.44}\pm 0.14)\times 10^{-5}<2.6\times 10^{-5}$.
