Due to the perfect management of hospital information system, the hospital staff could draw a better heal scheme for patients with the whole information when they take care of them. And hospital information in the medical environment has also played a key to the role to make patient have a convenient and efficient medical environment. These are the strong protection for the hospital flinty competition to get success in the future. A hospital information model considering the relationship among people, information and the information environment and its role in hospital infomationization based on information ecology is built, and we wish to provide new issues for the construction of hospital informalities for China.