L Last report about regardless the importance of tooth and mouth cleanness indicates that prevalence of caries in Indonesia increasingly over time. In one hand, the use and dental policlinic continuation in public-health care and in hospital is not yet optimal. In order hand, while sufferer visited them by in serious condition so must be done withdrawal of tooth. In this matter, usually is caused by the low of knowledge and consciousness of communities in significance of tooth and mouth healthy. This reascarch has purpose in order to understand of the relationship between attitude of caries in elementary school a District Puding Besar Province Bangka Belitung of student in 5 and 6 grades of SDN a District Puding Besar Province of Bangka Belitung on tooth and mouth healthy, especially is in tooth caries. The reaserch was done by using questioner was distributed for student of 5 and 6 grades. By a number of total respondents are 170 respondents. And the reaserch result is shown that student of SDN Kecamatan Puding Besar, Province of Bangka Belitung have of high knowledge, good attitude, medium action, and medium behavior levels, but of the caries level is still high so is concluded that there is no correlation are between behaviour and the higher of caries levels.