© 2022 Informa UK Limited, trading as Taylor & Francis Group.This article focuses on the family language policy (FLP) of second-generation Turkish immigrant families living in France. Data were collected through semi-structured interviews with 12 families to observe their language ideologies, practices and management strategies. The thematic analysis shows that despite generational differences of parents, Turkish is maintained because of their ethnolinguistic identity whereas French is learned for integration and school success. They all speak Turkish to children until school age and most of them begin to use both languages from the moment that children learn French at school. Some parents are more flexible in their FLP and adapt it more than once according to children’s needs. The practice of code-mixing was observed in all families, often constituting a gap between their ideologies and practices. Finally, their concentration of management strategies on French shows their effort to meet the expectations of the mainstream country and its educational language policy.