Measurement of minimum bias collisions, underlying event activity and double-parton scattering

We present recent results on minimum bias collisions, underlying event activity and double-parton scattering using data recorded by the CMS detector at the LHC. The results on the measurement of the underlying event using leading tracks, jets, and Drell-Yan processes are presented. Double-parton scattering is investigated in several final states including vector bosons and multi-jets, and the results are compared to other experiments and to multi-parton interactions models tuned to recent underlying event measurements at CMS.