Top Quark Physics at CMS

Experimental results on top quark physics obtained at the CMS experiment are reported. The results are based on the data recorded during the years 2011 and 2012 at centre-of-mass energies of 7 TeV and 8 TeV. CMS delivered a wealth of top-quark measurements ranging from inclusive and differential cross sections for top-quark pair and single-top quark production through the analysis of top-quark properties in production and decay, such as spin correlations, charge asymmetries and top-quark mass measurements, to searches for anomalous couplings. The measurements provide crucial information on the validity of approximations in QCD calculations as well as important constraints of fundamental standard model parameters and stringent limits on new physics searches.