Abstract: The evidence implicate that 50-80% of government expenditure in health sector specialized to hospitals and educational treatment centers. Therefore, these centers have efficient and important role in increasing or decreasing of expenditures. This study surveyed inappropriate admission and inpatients in Imam Khomeini educational and treatment centre. We used the Appropriate Evaluation Protocol (AEP) to evaluate the appropriateness of 268 admissions and inpatients in Imam Khomeini educational and treatment centre. The petitions selected through random sampling as well as demographiccriteria of them were registered then for analysis of data was used from t-test and X2. Our findings showed that 6% of admits and 8.6% of inpatients were in appropriate. There was remarkably association between inappropriate admission and disease diagnostic (p = 0.038) but there weren�t any association between inappropriate inpatient with age, gender, type of insurance and disease diagnostic. In this study, there was no association between inappropriate admission and inpatient among weekend and non weekend days. Reducing inappropriate hospital stay increase hospital productivity and decrease waiting list without decreasing quality of care; in the other hand inappropriate hospital stay increase hospital costs and risks of nosochomical infection. There are several tools to measurement of inappropriate admission and patient day that among them. With respect to our results, could be thought important step to preventing of inappropriate admission and decreasing inappropriate in patient to limit using from sources.