The invention is suitable for the technical field of photovoltaic subsidy strategies, and provides a photovoltaic subsidy strategy optimization method, which comprises the following steps: S1, constructing a three-dimensional niche resource space, determining game core elements, and constructing a distributed photovoltaic promotion scene based on a distributed photovoltaic promotion scene; a traditional single policy subsidy dimension is upgraded to a policy support, cooperation mode and economic benefit three-dimensional benefit resource space, and a precise decision coordinate
system is provided for a tripartite game; s2, a third-order dynamic game model is established at the same time, a three-party revenue function is quantified, and the decision sequence of the government, the enterprise and the farmer is taken as a logic chain; according to the photovoltaic subsidy strategy optimization method, for the government, the subsidy fund
utilization rate is increased by 30%-40%, the indirect cost proportion is smaller than 30%, and the dual-carbon target is met; for enterprises, the requirements of three types of
modes are met, the profit prediction accuracy is improved by more than 40%, and the market coverage is expanded by 50%; and for peasant households,
multiple modes adapt to different requirements, the adoption rate is increased by 40%-50%, the annual income fluctuation rate is smaller than 5%, three-party collaborative
ecology is constructed, and the dilemma of'policy slop falling, namely stagnation 'is solved.