The utility model discloses an equip in unmanned aerial vehicle's multi -functional bullet device that picks up can grab bullet, fortune bullet and grenade throwing, including the roof, move movable support ring, lead screw, baffle, V -arrangement bottom plate, remove parts such as L shape support and fixed L shape support. The roof is fixed in the unmanned aerial vehicle bottom, and the roof bottom is provided with the bottom plate support of two parallels and symmetry, and V -arrangement bottom plate accessible connecting rod slides along the arc wall in the bottom plate support. Change theposition of gear shifting board, control the storage and the release of shot. The lead screw is the utility model discloses a drive part moves movable support ring cover and links firmly on the lead screw and with movement nut. The equidistant setting of fixed L shape support, both ends are fixed respectively on roof bottom and V -arrangement bottom plate, the transfixion. Moving L shape support one end and linking firmly with bracket connection rod, another pot head is on the slide bar, and bracket connection rod links firmly with moving the movable support ring, and lead screw motor rotates,alright drive and move the componental movement. The utility model discloses simple structure, exquisite composition, grab and play the efficient stability that does not influence unmanned aerial vehicle flight.