Abstract: Aiming at the problem of farmers returning to coal and firewood heating in the Fenwei Plain, this paper divides the formation process of farmers' complete clean heating into four stages: non-clean heating, low-degree clean heating, high-degree clean heating and complete clean heating, which are correspondingly divided into three transformation behaviors: adoption, reinforcement and sustainability. The influence mechanism of rural house energy efficiency on farmers' clean heating transformation behavior is empirically analyzed by stages. The results show that: 1) At different stages of clean heating, the impact of rural house energy efficiency on farmers' clean heating transformation behavior is heterogeneous, and it mainly acts on the continuous behavior of complete clean heating. 2) Farmers' willingness to adopt clean heating plays a differentiated mediating role in the impact of rural house energy efficiency on farmers' different clean heating transformation behaviors, but the overall mediating effect is relatively weak. Rural house energy efficiency affects farmers' clean heating transformation behavior mainly through direct effects. Therefore, it is suggested to accelerate the collaborative governance of clean heating and rural house energy efficiency improvement and renovation, so as to promote the transformation of farmers to complete clean heating.