A medical intensive care system includes one or more signal sampling devices to detect at least one physiological parameter and parameter data corresponding thereto； memory to store the parameter data, and provide historical parameter data by storing the parameter data in a chronological order； a processor to process the historical parameter data to obtain a plurality types of data in an intensive care time interval； a display to display the plurality types of the data and current parameter data, comparatively, and update, when a historical intensive care time interval is adjusted, the plurality types of the data according to a change in the time interval.
