The invention belongs to the field of decision evaluation, and in particular discloses a confrontation decision evaluation method for an unmanned aerial vehicle. The method comprises the following steps: obtaining confrontation value information of the unmanned aerial vehicle, determining a payoff function of two game parties based on the confrontation value information of the unmanned aerial vehicle, generating a payoff matrix based on a confrontation decision set of the unmanned aerial vehicle and a revenue function, and obtaining an optimal confrontation decision of the unmanned aerial vehicle based on the interval possibility degree and a particle swarm algorithm. By means of the method disclosed by the invention, decision guidance can be provided for confrontation of the unmanned aerial vehicle; therefore, the confrontation cost of the second-party unmanned aerial vehicle is low as much as possible; and the confrontation benefit of the second-party unmanned aerial vehicle is high as much as possible.