In this paper, the cold rolling experiments of ultra thin steel strip were carried out on a Hille-100 experimental rolling mill, and theoretical analysis of cold rolling of the strip with roll edge kiss has been conducted. Simulation results show that the reduction has a significant influence on the crown of rolled strip, and the calculated rolling forces and strip crown are consistent with the measured values. The effect of friction in the roll bite on mechanics of cold rolling of ultra thin strip with roll edge kiss is also discussed. Surface characteristic was measured by a Hommel Tester T1000 portable profilemeter. It can be concluded that the strip surface roughness value decreases significantly after cold rolling. Thus the surface finish becomes better after cold rolling of ultra thin strip. © 2008 Verlag Stahleisen GmbH, Düsseldorf.