Aimed at some central issues of general interest and odd phenomena, an experimental research analysis and simulation of rolling interface was presented. Some root causes or originations of these issues were found. It is shown clearly that, surface roughness of working roll, a certain vibration mode of roll gap, material types of roll sleeve and lubrication state of rolling interface are the key factors determining rolling material quality and are sensitive to dynamic stability of rolling interface. Aimed at some central issues of general interest and odd phenomena, an experimental research analysis and simulation of rolling interface was presented. Some root causes or originations of these issues were found. It is shown clearly that, surface roughness of working roll, a certain vibration mode of roll gap, material types of roll sleeve and lubrication state of rolling interface are the key factors determining rolling material quality and are sensitive to dynamic stability of rolling interface.