  Recent top quark event modelling studies done using CMS proton-proton data
collected at a centre of mass energies of 8 and 13 TeV and state-of-the-art
theoretical predictions accurate to next-to-leading order QCD interfaced with
\PYTHIA and \HERWIG event generators are summarised. The particle-level top
quark (pseudo-top), underlying event measurement in \ttbar events and parton
shower tuning using \ttbar events are discussed.
