The background of the research is the unfinished Covid-19 pandemic in Indonesia, and it makes public adapt to all situations and conditions that are lived, including the learning process in the study place. The government issued a regulation to reduce the Covid-19 incidence rate by applying online learning or distance learning. This condition is certainly not an easy thing for families, students, and the education management to achieve the learning purpose. This study aims to know the relationship of family support in the implementation of online learning with Student Semester Achievement Index during the Covid-19 pandemic in 2021. The research method used an analytic description, using a cross-sectional approach. The research was conducted in November 2021 in Faculty of Nursing, Cendekia Abditama University. The instrument used a questionnare, with 144 respondents of research samples. The results showed significant relationship between family support in the implementation online learning with Student Semester Achievement Index with p-value = 0.00. Studies indicate that family is a main support in the educational process.
 Keywords: Covid-19, family support, grade point average