  In the littlest Higgs model with T-parity, we studied the contributions of
the new particles to the top-quark pair production via $e^{+}e^{-}$ collision
at the International Linear Collider. We calculated the top-quark pair
production cross section and found this process can generate significantly
relative correction. The result may be a sensitive probe of the littlest Higgs
model with T-parity.
