  We present the QCD corrections to the processes $p\bar{p}/pp \to e\mu+X$ at
the Tevatron and the CERN large hadron collider(LHC). The numerical results
show that variation of K factor is in the range between $1.28(1.32)$ and
$1.79(1.58)$ at the Tevatron(LHC). We find that the QCD correction part from
the one-loop gluon-gluon fusion subprocess is remarkable at the LHC and should
be taken into account.
