Mulao’ traditional legal culture is one of the minority traditional legal cultures. It plays an important role in the local social governance. At present, its development is facing difficulties such as inadequate institutional guarantees, weakened social governance functions, and poor coherence with the modern legal culture. This paper is suggested to strengthen the institutional guarantee for maintaining Mulao’s traditional legal culture, to explore its the modern social governance functions, and to promote the organic integration of this traditional legal culture and the modern legal culture, so as to better promote its modernization and bring into full play its due value function for rural governance in ethnic areas.