The invention provides a multifunctional spring thrower. The multifunctional spring thrower is characterized in that elastic potential energy is gathered with the aid of a mechanism and then is excited to become kinetic energy of thrown objects; in addition, with the aid of a front sight and a staff gauge on a shooting tube, the thrown objects are thrown in place accurately after people aim in the correct direction and measure the distance; militarily, the multifunctional spring thrower can be used for throwing grenades, hand grenades and incendiary bombs to enemy positions hundreds of meters to thousands of meters away; during throwing, the shooting tube is not limited by the temperature, both a machine and an individual soldier can continuously shoot, and the thrower can further replace a water cannon when used on a ship; when the ship docks, a mooring rope can be thrown onto a dock at a long distance through the thrower; during water life saving, a lifebuoy, a life raft and a life rope can be thrown to an accurate position at a long distance through the thrower; during fire extinction in a high building, a fire extinguishing bomb and a fire extinguisher can be directly thrown in from a door or a window through the thrower. The multifunctional spring thrower is simple in structure, light in weight, easy to operate, long in throwing distance, safe, accurate and high in continuous throwing speed, thereby being the optimal thrower at present.