Abstract: Objective To investigate the delirium knowledge and needs of health care professionals in the intensive care unit of hospitals in Ningxia. Methods The health care professionals from 4 hospitals of Ningxia were selected by convenience sampling. These health care professionals were investigated by questionnaires to know their delirium knowledge，knowledge acquisition ways，and the ways they expected to get the knowledge. Results The mean score of delirium knowledge of health care professionals was （56.10 ±18.24）. Logistic regression analysis showed that age and profession were the influencing factors of delirium knowledge，OR values were 1.113 and 4.547. Over 79.19% of the participants considered clinical experience as their main source of knowledge about ICU delirium. 69.13% of the participants had never received any education on ICU delirium. Conclusion Health professionals in hospitals of Ningxia have lower level of knowledge on ICU delirium and the knowledge they have is far beyond enough to meet their clinical needs. It is suggested to adopt the model of clinical practice together with school education to train health care professionals and the students. By this way，the ability of detecting delirium early can be greatly improved.

Key words: Intensive Care Units, Delirium, Nurses, Knowledge, Needs Assessmen