The utility model relates to a low-overload thrust-adjustable launch test device, which comprises a launch canister
assembly, a thrust-adjustable thrust-adjustable launch canister
assembly and a thrust-adjustable thrust-adjustable thrust-adjustable launch canister
assembly, and is characterized in that the launch canister assembly comprises a cylindrical and hollow launch canister body; the inner cylinder is coaxially arranged in the launching cylinder body, the outer
diameter of the front end of the inner cylinder and the outer
diameter of the main body are smaller than the inner
diameter of the launching cylinder body, a boss protruding outwards in the radial direction is arranged at the rear end of the front end of the inner cylinder, and the boss is slidably connected into the launching cylinder body; the rear seat assembly is installed at the rear end of the launch canister body, the rear seat assembly is provided with a first cavity used for containing
gunpowder, a second cavity is formed between the front end of the rear seat assembly and the inner canister, and after the
gunpowder is ignited, due to the action of
gas pressure, the first cavity and the second cavity are communicated, so that the
gunpowder is ignited; the volume of the second cavity is larger than that of the first cavity, the
gas pressure is reduced along with increase of the volume, and therefore low-overload launching can be achieved when the inner cylinder pushes the to-be-launched
projectile or the unmanned aerial vehicle.