en Aim: Oral health is one of the most important parts of public health which significantly affects on quality of life. The purpose of this study is to assess the socio-economic statues as well as oral health behaviors among a sample of Iranian students studying in elementary level. Methods: This was a cross-sectional study which was conducted from April 2012 to November 2012. Data obtained from a face-to-face interviews with students studying in elementary schools of Chahbahar, Iran. Considering inclusion criteria, 300 eligible students were selected through a two - stage random cluster sampling. Data were analyzed through descriptive statistics using SPSS version 11.5. Finding: Totally 300 students who studying in grade four or five of elementary schools took part in the study. The mean age of subjects was (11± 2.81). Of all students, 11/7% (n = 35) never brush their teeth, 18% (n=54) never floss and 20% (n= 62) never used mouth wash. Furthermore, 94 students (31%) of students had no dental visits regularly. As the results showed, there were significant relationship between lower parents’ educational level (P=0.02), not to access to dental caries services (P=0.04) and lower income (P=0.03) and reasons for not doing oral health behaviour. Conclusion: According the results of this study the students who were in lower socio economic levels, doing less dental healthy behaviors. Oral healthy behavior,Socio-economic,Elementary students,Cross sectional study,Iran 87 96 http://hehp.modares.ac.ir/browse.php?a_code=A-5-1000-1998&slc_lang=en&sid=4 Fatemeh Mohammadkhah Fatemeh Mohammadkhah 100319475328460055062 100319475328460055062 No Department of Health Education & Health Promotion, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran Department of Health Education & Health Promotion, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran Farkhondeh Amin Shokravi Farkhondeh Amin Shokravi 100319475328460055063 100319475328460055063 Yes Department of Health Education & Health Promotion, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran Department of Health Education & Health Promotion, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran Soghrat Faghihzadeh Soghrat Faghihzadeh 100319475328460055061 100319475328460055061 No Department of Biotic Statistic & Epidemiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran Department of Biotic Statistic & Epidemiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran Sedigheh Sadat Tavafian Sedigheh Sadat Tavafian 100319475328460055002 100319475328460055002 No Department of Health Education & Health Promotion, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran Department of Health Education & Health Promotion, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran Arezoo Fallahi Arezoo Fallahi 100319475328460054833 100319475328460054833 No Department of Public Health, School of Health, Kurdistan University of Medical Sciences, Sanandaj, Iran Department of Public Health, School of Health, Kurdistan University of Medical Sciences, Sanandaj, Iran