  Discriminating the Higgs production mechanisms plays a crucial role in
directly measuring the couplings of Higgs to gauge bosons for probing the
nature of the electroweak symmetry breaking. We propose a novel method to
distinguish the Higgs production mechanisms at the LHC by utilizing the jet
charge asymmetry of the two leading forward jets in Higgs plus two jets
production. This novel observable provides a way to disentangle the $W$-fusion
from the $Z$-fusion and gluon fusion processes for the first time, due to the
electric charge correlation of the two leading jets in the events. We show that
the Higgs couplings to gauge bosons can be well constrained and its conclusion
does not depend on the other possible new physics effects which modify the
Higgs total or partial width. We also discuss the complementary roles between
the proposed jet charge asymmetry measurement and the Higgs signal strength
measurements at the HL-LHC in determining the Higgs couplings.
