Guidelines for the sustained use of sedatives and analgesics have been developed for patients in the general ICU，but little attention has been directed toward sedation of patients with spontaneous intracerebral hemorrhage. Analgesia-based sedation，known as analgosedation，emphasizes the initial use of an opioid to control pain and agitation，followed by the addition of a sedative as needed for residual agitation.Procedural related pain is the most common form of health care induced pain. More specifically, patients recall repeated painful procedures as strong negative memories of the time in ICU. It is reported that 46% of the patients experienced at least one unacceptable pain event at rest during their stay. In order to reduce this incidence，a pain titration protocol for pain management at rest is implemented in ICU.