Probing the quark-gluon plasma at the energy frontier with the LHC

After the Large Hadron Collider (LHC) turned on in 2009 at CERN, the experiments at LHC (ALICE, ATLAS, CMS, LHCb) started their own physics program by using the heavy ion beams at the highest beam energy, which give us an access to the precise determination of Quark Gluon Plasma (QGP) properties at high temperature regime. By accumulating high statistics data in the past almost 10 years, we found many interesting and new observables; for example the jet quenching and energy re-distributions in the matter, enhancement of charmonia at low transverse momenta and possible recombination, collective-flow like signal and strangeness enhancement at high multiplicity proton-lead and proton-proton events. In this talk, we summarize recent experimental results from the LHC heavy ion program, and clearify the current underfunding of the nature of QGP properties. And we also discuss the future direction of the LHC heavy ion physics program and upgrade plans.