Disclosed in the present application are a launch device and a launch toy. The launch device comprises a launcher and a main body, wherein the launcher is adapted to have an object to be launched mounted thereon, and comprises an acceleration mechanism and a launch mechanism; the main body is detachably connected to the launcher, and comprises a slider and a release mechanism; the slider can reciprocatingly move, and is adapted to drive the acceleration mechanism, such that the acceleration mechanism drives said object to rotate; and the release mechanism is adapted to drive the launch mechanism, such that the launch mechanism drives said object to launch. In the technical solution of the present application, the slider can drive said object to rotate, the release mechanism can drive said object to launch, and the slider and the release mechanism do not affect each other; and said object can keep rotating even after being launched, thus being highly conducive to competitive confrontations and improving both the playability and entertainment value.