In recent years, with the rapid development of the social economy, the market demand for tourism has subsequently enhanced, the integration of leisure agriculture and rural tourism as a new type of business, the state-issued policy support, leisure agriculture and rural tourism has also received widespread attention. This study proceeds to the demand for the synergistic development of leisure agriculture and rural tourism, reveals the mechanism of synergistic development of leisure agriculture and rural tourism, plans its development trend then constructs a coupling evaluation model for the synergistic development of leisure agriculture and rural tourism by using entropy method, entropy weight method and coupling model. Finally, through empirical analysis, it is concluded that both leisure agriculture and rural tourism in province M as a whole show a certain upward trend, and, in 2021~2023, both of them stepped from the state of dysfunction into the state of primary coordination, and the degree of coupling coordination was raised from 0.6251 to 0.6421. During 2019~2020, the degree of coupling coordination between leisure agriculture and rural tourism is constantly climbing, the coupling coordination relationship between leisure agriculture and rural tourism coupling coordination relationship is continuously strengthening, and the cooperation between industries is gradually increasing. Secondly, the driving force of leisure agriculture as a whole has become a rising trend, while the tourism industry is generally stabilizing. The unbalanced development of tourism’s three-dimensional power has a certain inhibiting effect.