  In the littlest Higgs model with T-parity, which predicts a pair of T-even
and T-odd partners for the top quark, the top quark interactions are altered
with respect to the Standard Model predictions and deviation will manifest in
various top quark processes. In this work we examine the effects in htt_bar
productions at the ILC and LHC. We find that in the allowed parameter space,
the cross sections can be significantly deviated from the Standard Model
predictions and thus provide a good test for the littlest Higgs model with
T-parity. We also examine the new production channel, the htT_bar or hTt_bar
production, at the LHC, which give the same final states as htt_bar production
due to the dominant decay T->Wb. We find that, compared with htt_bar
production, this new production channel can have a sizable production rate for
a T-quark below TeV scale. Such a production will be counted into htt_bar
events or possibly extracted from htt_bar events, depending on if we can
distinguish the T-quark from the top quark from mass reconstructions.
