Aims: The aim of this study is comparison the level of Vitamin D deficiency in non-diabetic adult people with metabolic syndrome in Ahvaz.Material & Methods: This descriptive study investigation carried out on a population of individuals with metabolic syndrome. ATPIII criteria were used for metabolic syndrome. Serum concentration of 25 (OH Vit D) of below 5 ng/ml was considered as severe deficiency, 5-10 ng/ml as average deficiency, 10-20 ng/ml as slight deficiency, and above 20 ng/ml as normal.Results: The results showed mean level of vitamin D was not significant in individuals with and without HTN and in different genders (P > 0.5). No significant difference was found between case and control groups in terms of the distribution level of vitamin D (P > 0.5). In both groups, the difference between blood pressure (systole and diastole) was not significant in cases of severe and average deficiencies. But it was significant different in the group with slight deficiency (P = 0.03). In the case group, 58% of the participants had FBS>100.Conclusion: The group with metabolic syndrome had a higher intensity of vitamin D deficiency compared to the control group.