B BACKGROUND Online game is a type of game that uses electronic devices such as computersor special devices commonly used to play games. This game also uses the internet,so players around the world can play together at the same time. Onlinegame players around the world are numerous, around 217 millionpeople. Approximately 8.5% of them are classified as addicts. In Indonesia, basedon the 2007 Riskesdas Data, it is known that the prevalence of mental emotionaldisorders is 11.6% of the adult population.this research aims to assesses therelationship between duration of online gaming with emotional control capacity atage 12-15 yearsMETHODThis type of research is an observational analytic study with a cross-sectionaldesign approach. This research is retrospective by using questionnaire dataregarding the length of online game use with emotional control at the age of 12-15years. at SMP Negeri 1 Penggala Tulang Bawang Lampung. The number ofrespondents was 35 people where data analysis was done univariately andbivariately using the chi square test. The method used was simple randomsampling. The instrument used was the Tangney self control questionnaire Theanalysis was processed with SPSS 2 3.0 and the significance level used was 0.05.RESULTSBased on the results of the chi square test found that there are 82 people (70.7%)who have a high duration of playing games and have less emotional control. Whilethose with high duration of game play but good emotional control, 34 people(29.3%). Statistical test results obtained p value = 0.014 (p <0.05).CONCLUSIONThis study shows that there is a relationship between playing time with self-controlat SMPN 1 Menggala, Penggala District, Tulang Bawang Regency, Lampung.