We will discuss in this paper the importance of the use of health information technology in public health, as we know the health care industry is one of the most important priorities of the states to provide health care well we need to use of modern technologies, and given the importance of health informatics, which is a crucial element in the delivery of health care, development and shared decision-making and participation of consumers, the use of health information in the public health deliberately including the field: -Use Statistical analysis of the data for the analysis of epidemiological data sets -Develop assistant for patients in decision-making tools to deal with data and research Work. References: -Medical Informatics, computer applications in health care and biomedicine, seco -Biomedical Informatics, Computer Applications in health care and biomedicine, third edition., springer -Biomedical Informatics, An introduction to information systems and software