  In the framework of the topcolor-assisted technicolor $(TC2)$ model, we study
production of the neutral top-pion $\pi_{t}^{0}$ in association with a
high-$p_{T}$ jet at the $LHC$, which proceeds via the partonic processes
$gg\longrightarrow \pi_{t}^{0}g$, $gq\longrightarrow \pi_{t}^{0}q$,
$q\bar{q}\longrightarrow \pi_{t}^{0}g$, $gb(\bar{b})\longrightarrow
\pi_{t}^{0}b(\bar{b})$, and $b\bar{b}\longrightarrow \pi_{t}^{0}g$. We find
that it is very challenging to detect the neutral top-pion $\pi_{t}^{0}$ via
the process $pp\longrightarrow \pi_{t}^{0}+jet+X\to t\bar{t}+jet+X$, while the
possible signatures of $\pi_{t}^{0}$ might be detected via the process
$pp\longrightarrow \pi_{t}^{0}+jet+X\to(\bar{t}c+t\bar{c})+jet+X$ at the $LHC$.
