Afro-Linguistics is a branch of linguistics that studies languages spoken in Africa and their historical development. In Tunisia, linguistic diversity is significant with several African language groups coexisting alongside Arabic. Understanding these diverse structures is crucial for cultural preservation and academic research. Theoretical analysis will be employed to explore existing literature and propose new analytical tools for studying these languages. A comparative approach will be used to highlight similarities and differences among the various African language groups in Tunisia. The theoretical framework developed will provide a robust foundation for future research and policy on linguistic diversity in Tunisia, emphasising the importance of preserving and understanding these unique language systems. Researchers should consider incorporating this framework into their studies to enhance the accuracy and depth of analysis. Policy-makers might use it to develop more inclusive educational curricula that respect and value diverse linguistic heritages.