The invention relates to the technical field of agricultural machinery, in particular to an unmanned aerial vehicle carrying-type green manure broadcast sower. The unmanned aerial vehicle carrying-type green manure broadcast sower comprises an unmanned aerial vehicle assembly and a sowing assembly which is fixedly installed at the lower end of the unmanned aerial vehicle assembly; the sowing assembly comprises a storage cavity and one or more flow channels, wherein the flow channels are located at the lower end of the storage cavity and communicate with the storage cavity, a baffle is vertically inserted in the flow channels in a penetrating mode, wherein the baffle is driven by a driving assembly and reciprocates in the direction perpendicular to the flow channels, and during reciprocating of the baffle, the state change of reciprocating conduction and closure of the flow channels is realized. According to the unmanned aerial vehicle carrying-type green manure broadcast sower, designis novel, the baffle which is driven by the driving assembly and reciprocates in the direction perpendicular to the flow channels is vertically inserted in the flow channels in a penetrating mode, andduring reciprocating of the baffle, reciprocating conduction and closure of the flow channels is realized, so that the same amount of green manure is sown, concentrated growth of part of the green manure can be effectively prevented, the practicality is high, and meanwhile, a route acquisition module is arranged in the unmanned aerial vehicle assembly so that the unmanned aerial vehicle assemblycan conduct self-moving sowing conveniently according to the stored route in the next use.