  We propose to use hard exclusive production of an exotic hadron for finding
its internal quark-gluon configuration by the constituent-counting rule in
perturbative QCD. In particular, the cross section for the exclusive process
$\pi^- + p \to K^0 + \Lambda (1405)$ is estimated at the scattering angle
$\theta=90^\circ$ in the center-of-mass frame by using current experimental
data. In comparison, the cross section for the ground-state $\Lambda$
production $\pi^- + p \to K^0 + \Lambda$ is also shown. We suggest that the
internal quark configuration of $\Lambda (1405)$ should be determined by the
asymptotic scaling behavior of the cross section. If it is an ordinary
three-quark baryon, the scaling of the cross section is $s^{8} d\sigma
/dt=$constant, whereas it is $s^{10} d\sigma /dt=$constant if $\Lambda (1405)$
is a five-quark hadron, where $s$ and $t$ are Mandelstam variables. Such a
measurement will be possible, for example, by using the high-momentum beamline
at J-PARC. In addition, another exclusive process $\gamma + p \to K^+ + \Lambda
(1405)$ could be investigated at LEPS and JLab for finding the nature of
$\Lambda (1405)$. We indicate that the constituent-counting rule could be used
as a valuable quantity in determining internal structure of exotic hadrons by
high-energy exclusive processes, where quark-gluon degrees of freedom
explicitly appear. Furthermore, it is interesting to investigate the transition
from hadron degrees of freedom to quark-gluon ones for exclusive exotic-hadron
production processes.
