Top quark pair properties using the ATLAS detector at the LHC

hese proceeding review the most recent results on the top quark measurements performed by the ATLAS detector, based upon datasets of $4.59$ fb$^{-1}$ and of $20.8$ fb$^{-1}$ of proton--proton collisions delivered by the Large Hadron Collider at the centres-of-mass energy of \mbox{$\sqrt{s}=7 \ \rm TeV$} and of \mbox{$\sqrt{s}=8\ \rm TeV$}, respectively. The measurements of the top quark mass, the cross section of \ttbar\ production in association of vector bosons ($W$, $Z$ and $\gamma$) and the measurement of the charge asymmetry are detailed. The importance of evermore precise measurement of the top quark's properties is highlighted.