To identify level of depression for sixth class of secondary  school. To identify the effect of depression learning status. To determine the reason that lead to depression. A cross sectional study was conducted from 11th December, 2014 up to 10th march, 2015 in order to study incidence of  depression among sixth class of secondary school students in al-najaf city. The study was carried out in the secondary schools ( Khaurnq, Sidrat  Almuntaha, Kufa, Najaf, Muslim Ibn Aqil, Sheikh al mufeed  , aminh al sadeer, al ameer, Lathiqia) at AL-Najaf city. a questionnaire format was designed and constructed by researchers to achieve objective the study .   the questionnaire format  consisted of two  parts  the part 1 socio demographic characters sheet consist of 4 items which include age ,gander ,parents occupation ,parents education level, residence. Part 2 include  10 items related to depression, not at all 1, several day 2 ,more than half the 3, nearly every day 4. A randomized  sample of  150  students  were collected from 10 secondary schools with range 15 students from each school. The present study found that the depression scale of more than half the days were increased and highest within the secondary sixth class students at age