A single-trigger double-electric-shoot mechanism comprises a trigger set. A trigger sliding block and a trigger rotation block are arranged in the trigger set. An upper sliding block locating strip and a lower sliding block locating strip are arranged on the upper side and the lower side of a trigger sliding block body correspondingly and located on the front side and the back side of the verticalcenter of the trigger sliding block body correspondingly. The upper and lower sliding block locating strips are provided with upper and lower sliding block locating strip inclined faces. A first rotation block locating strip and a second rotation block locating strip are arranged on the upper side and the lower side of a trigger rotation block body. The two rotation block locating strips correspond to the upper and lower sliding block locating strips in position. The back side of the trigger rotation block body is provided with a conductive protrusion. An upper set orienteering groove and a lower set orienteering groove are arranged on the left side in the trigger set. A set backward rotation inclined face is arranged between the back edge of an outlet of the upper set orienteering grooveand the back edge of an outlet of the lower set orienteering groove. A set frontward rotation inclined face side is similar with the set backward rotation inclined face in structure and opposite in direction. The trigger rotation block can continuously rotate by 180 degrees, two shoot circuits are connected in turn, a mechanical transmission component is simplified, and the triggering action is also simplified. The single-trigger double-electric-shoot mechanism can be transplanted to different double-barreled weapon platforms, so that the shooting precision is improved.