Abstract: In recent years, the state has actively implemented the institutional large-scale tax reduction and fee reduction policy. Under this background, local financial sustainability is facing certain difficulties. At present, it is an important historical node of agricultural and rural development. From the perspective of vigilance against the wavering position and Behavior Alienation of local governments in supporting agriculture caused by the intensification of payment pressure, it is urgent to improve the long-term stability mechanism to prevent the risk of low-level wandering of the scale of local financial support for agriculture from the perspective of expanding financial resources, Under the guidance of strengthening people's livelihood, we should improve the supervision and guarantee mechanism to prevent the risk of avoiding the direction of local financial support for agriculture, improve the innovation driving mechanism to prevent the risk of conservative maintenance of local financial support for agriculture from the perspective of carrying forward the initiative spirit, and improve the reasonable transformation mechanism to prevent the risk of excessive outward pressure of local financial support for agriculture from the perspective of collaborative multiple subjects.