This paper aims to extract the Hakka people’s cultural genes and explore the remodeling model of public cultural space in Hakka people by using modern design language. Starting from the current situation of public cultural space in Hakka People’s traditional villages, this paper analyzes the ecological civilization thought of respecting nature, conforming to nature and protecting nature embodied in the production practice and living landscape of Hakka traditional villages, and the Hakka people cultural gene of jiangxi-fujian-guangdong border region, this paper analyzes the systematic and ecological design principles of the cultural facilities in Hakka traditional villages. This paper expounds the development of public cultural facilities such as Tea Pavilion, Wind and Rain Bridge, Pool and stage leftover from Hakka traditional villages in Gannan, Fujian and Guangdong, and takes Bailu village as an example to extract the cultural genes of Bailu village, and to study the creative ideas of its public cultural facilities. Taking the public cultural facilities as an important carrier of eco-cultural tourism, this paper presents the public cultural facilities of traditional villages in Hakka people, the cultural gene and modern design language of Hakka people, the agricultural productive landscape and the living space, the integration of cultural experience and tourism in Hakka people have realized the “breaking” and “establishing” of the inheritance of traditional village culture in Hakka people, and reappeared the important value of Hakka people culture in the construction of ecological civilization.