The invention discloses a high-efficiency automatic sorting machine which comprises a sorting machine body and a feeding plate. A feeding port is formed in the center of the top of the sorting machine body. The feeding plate is obliquely arranged on one side above the feeding port, and the feeding plate is located on one side of the upper portion of the sorting machine body. The same U-shaped frame is welded to the three sides of the top of the feeding plate, and the two sides of the top of the feeding plate are provided with two sliding grooves correspondingly, wherein the two sliding grooves are formed oppositely. The two sides of the interior of the U-shaped frame are provided with first rotary rods correspondingly. The two sides of the interior of the U-shaped frame are rotationally connected with first connecting plates through the first rotary rods correspondingly. Second rotary rods are arranged on the first connecting plates. According to the high-efficiency automatic storing machine, the inclination angle between the feeding plate and the sorting machine body is adjustable, the speed of coins which are located on the feeding plate and slide into the feeding port can be increased easily, in addition, the distance between two second connecting plates on the feeding plate is also adjustable, the coins on the feeding plate can slide into the feeding port conveniently, and the working efficiency of the automatic sorting machine is high.