One of the most frequent causes of going to cardiovasculor clinics is chest pain The origin of Chest pain can be cardic or noncardic. Noncardic chest pain may be due to psychicl disorders such as obsession, violence, anxiety, depression, paranoid, phobia, somatization, psychosis.

Present survey is a discriptive, cross sectional study which has been carried out on 400 patients with chest pain refferred to Semnan Fatemieh hospital. These patients did not have cardiovascular diseeses and related test and exercise test were negative. Data from these patients were collected by questionaire.

Fifty three percentage of patients were men and 47% were women. The most prevalence psychial disorder in this study was depression with 66.2% and the least one was psychosis with 16%. Depression intensity in 73% of patients was light. Moderate and vigarous intensities in patients were 26% and 1% respectively. The percentages of anxiety and obsession with different level intensites (light, moderate and vigarous) were 85%, 15%, 0% and 79%, 18%, 3% respectively.

In this study depression and agitation were the most common of psychial disorder agents in patients with chest pain, origin noncardiac. This fact showed a similarity with other studies, while agitation was the most common agent of the chest pain in some studies. It seems this difference arising from cultural diversity of patients. The most prevalance of psychial disorders in men and wonen (mid ages) were 47.18% and 47.8% respectively.