The latest results on top quark pair cross-section measurement

The latest results on top quark pair production cross-section measurement in proton-proton collisions at $\sqrt{s} = 7\ TeV$ and $\sqrt{s} = 8\ TeV$ with the ATLAS detector are reported. The inclusive cross-section was measured with 4% of uncertainty using di-lepton e-mu events. The measurement of the differential cross-section as functions of various observables such as transverse momentum and rapidity of the top quark and invariant mass of the pseudo-top-quark pair system including the results in boosted topologies are also reported. These results are compared with the various generators such as Powheg, Alpgen and MC@NLO and the various PDF sets.