ABSTRACTThis study is aimed at describing successful students in learning Englishas a foreign language in the Light of Affective Factors in SMPIT Ibnu AbbasKlaten. It was carried out at SMPIT Ibnu Abbas Klaten.This study is qualitative research. It was carried out at SMPIT Ibnu AbbasKlaten. The data of the research are document analysis, observation, and resultinterview. From the data collection, a set of data or information about successfulEnglish students in learning English at SMP IT Ibnu Abbas are gained. From thedata that is analyzed using constant comparative method, some research findingsare obtained.The result of this study can be concluded into three, firstly, the affectivefactors that much influence on the successful English students are themotivation, the attitude and self concepts. Secondly, behaviors implementedinfluence students raised behavioral learning English. Thirdly, the affectivefactors can influence the successful English students by having high motivationthat can drive the students study English harder, having positive attitude studentscan modify their positive response to all English processes and having positiveself concept students are motivated to view English as challenge. Other result ofthe research is that Game has positive effects on academics achievements.The conclusion of the research is affective factors among successfulEnglish students play important role in making them successful learning English.The good affective factors influence much on their success of learning English.The high motivation influences the highly getting English achievements, thepositive personal traits and positive attitudes make students having good moodand atmosphere to respond all situations and the conditions even the learningprocess. These positive personal traits and attitude support much on how high themotivation the students have in running their English learning. Then the good selfconcept of the students arise when they have high motivation, positive personaltraits and attitude toward English. The motivation drives students on how high theeffort do to get English achievements. While positive personal traits support muchon how students see and feel the English learning process. The positive attitudetoward English helps students much on how they deeply respond on the teachinglearning process. The last good self concept the students have supported on howwell they perform as English students.Key words : qualitative research, English students, learning English, affectivefactors.