Introduction: Anxiety is one of factors which increase mortality in patients with cardiac diseases and has mortal effects on patients’ candidate for coronary angiography. The aim of this study is the assessment of anxiety level in patients’ candidate for coronary angiography and its relationship with demographic factors.

Methods: This was a cross-sectional (descriptive-analysis) study which anxiety level and vital sign of 60 patients’ candidate for coronary angiography in Nahaja Besat hospital were assessed. Vital signs were assessed by the nurse and anxiety level was checked by Spielberger's state anxiety questionnaire.

Results: The participants’ age was 35-80 years. Anxiety level mean was more than moderate. Study results showed meaningful relationship of anxiety with age (P< 0/001), sex (P< 0/001), marriage status (P= 0/05), treatment costs (P< 0/001), house status (P< 0/001), job (P= 0/02) and education (P= 0/012).

Conclusion: According to this study results that there were more than moderate anxiety level in coronary angiography candidate patients and also according its mortal effects on cardiac vascular situation, using anxiety reduction ways before angiography is necessary.