This research aimed to identify Usage of health informatics in Saudi medical institution and its implications, the research relied on the descriptive analytical approach, and a questionnaire was used to collect data from the target group consist of (80) reviewers of government hospitals in Riyadh, who were chosen randomly, a questionnaire was used to collect data from the study sample, the questionnaire consisted of (15) indicators to measure the level of health informatics services in health institutions in the Kingdom of Saudi Arabia. The result showed that showed that the general level of the study sample’s estimates on the indicators of health informatics in Saudi medical institution and its implications was (3.62), with a medium degree as a hole from the point view of the study sample, Table (1) also showed that (3) Indicators ranked in a high degree of appreciation, and (12) Indicators ranked in medium degree of appreciation, the sample’s levels of estimates on indicators of health informatics ranged between (2.86-3.74), with standard deviations between (0.82 -98).