This research aimed to determine the relationship between family communication and attribution style of academic achievement in tenth grade students from the Escuela Profesional Isabel Herrera Obaldía. The approach of this study was quantitative, with a non-experimental, descriptive-correlational design and a non-probabilistic sampling. The sample was made up of 36 students of both genders between the ages of 15 to 17 years old. The instruments used were the Family Communication Scale by Barnes & Olson, adapted and validated by Cracco & Costa-Bell, and the Questionnaire of Attributional Styles by Alonso and Sanchez, adapted and validated by Matalinares et. al (2009). The results indicated that the students had an intermedium level family communication, and their prevailing attributional styles were attribution of success to effort and attribution of academic failure to lack of effort. Besides, using Spearman's correlation coefficient, it was established that there is a relationship between family communication and attributional styles: of academic success to ability, success to effort, academic failure to bad luck and failure to lack of ability.