A method and system for resolving a multi-operator distributed collaborative conflict of an unmanned air vehicle is disclosed, including: resolving a conflict in a strategic stage: generating multidimensional data based on time and spatial elements, rasterizing the multidimensional data, performing preliminary conflict resolution according to a preset airspace and an airspace requirement after rasterizing, and generating strategy approval information; and completing strategy conflict resolution by checking the strategy information; resolving a conflict in a pre-tactical stage: acquiring flight plan approval information, designating checking parties, performing multiple checks on the flight plan information, and performing judgment in combination with checking results of a plurality of checking parties to generate a conflict checking result; and resolving a conflict in a tactical stage: identifying a trajectory deviation according to real-time flight data, and sending out a warning according to a deviation category; and optimizing a path according to the deviated trajectory.