An automatic weight separator having each measuring and sorting type capability comprising: a frame unit in which a plurality of frames are connected to each other; an introducing unit in which a plurality of chutes are coupled to the frame unit and provided in multiple rows to be inclined downward toward the front side to introduce and discharge stick packaging products; a measuring unit which is provided below the introducing unit and includes a plurality of rotary motors to provide a rotational force to impellers, impellers rotatably connected to the rotary motors in both directions and storing the stick packaging products falling from the chutes, and a measurement sensor provided below the rotary motor to measure the weight of the stick packaging products stored in the impellers; a control unit which determines normal products and defective products by receiving a measurement signal from the measurement sensor, controls the rotary motors according to the determining result to rotate the impellers to one side or the other side, and sorts the normal products and the defective products; a driving unit which includes a driving motor provided on one side below the frame unit, a rotary shaft rotating by a driving force of the driving motor and provided in a lateral direction, and a friction sheet attached to an outer surface of the rotary shaft to drive a belt unit by a friction force; the automatic weight separator being characterized in that it comprises a belt unit which is formed on a lower side of the impeller, orthogonal to the rotary shaft, and driven by the frictional force with the friction sheet to convey the normal products falling from the impellers, and includes a body provided with a round groove formed at a rear side to correspond to the friction sheet, rotary rollers provided on front and rear sides of the body, respectively, a downward guide roller provided in the middle of the lower side of the body to guide the convey belt to the lower side, an upward guide roller provided at the rear side of the lower side of the body to guide the convey belt struck downward to the friction member on the upper side thereof, a convey belt rolled on front and rear rotary rollers and guided by the upward guide roller and the downward guide roller to convey the normal products by the friction force of the friction sheet, and blocking plates provided vertically at both sides of the convey belt, and a sorting unit formed at the side of the belt unit and having a through hole through which the defective products falling from the impellers pass. a frame unit in which a plurality of frames are connected to each other; an introducing unit in which a plurality of chutes are coupled to the frame unit and provided in multiple rows to be inclined downward toward the front side to introduce and discharge stick packaging products; a measuring unit which is provided below the introducing unit and includes a plurality of rotary motors to provide a rotational force to impellers, impellers rotatably connected to the rotary motors in both directions and storing the stick packaging products falling from the chutes, and a measurement sensor provided below the rotary motor to measure the weight of the stick packaging products stored in the impellers; a control unit which determines normal products and defective products by receiving a measurement signal from the measurement sensor, controls the rotary motors according to the determining result to rotate the impellers to one side or the other side, and sorts the normal products and the defective products; a driving unit which includes a driving motor provided on one side below the frame unit, a rotary shaft rotating by a driving force of the driving motor and provided in a lateral direction, and a friction sheet attached to an outer surface of the rotary shaft to drive a belt unit by a friction force; the automatic weight separator being characterized in that it comprises a belt unit which is formed on a lower side of the impeller, orthogonal to the rotary shaft, and driven by the frictional force with the friction sheet to convey the normal products falling from the impellers, and includes a body provided with a round groove formed at a rear side to correspond to the friction sheet, rotary rollers provided on front and rear sides of the body, respectively, a downward guide roller provided in the middle of the lower side of the body to guide the convey belt to the lower side, an upward guide roller provided at the rear side of the lower side of the body to guide the convey belt struck downward to the friction member on the upper side thereof, a convey belt rolled on front and rear rotary rollers and guided by the upward guide roller and the downward guide roller to convey the normal products by the friction force of the friction sheet, and blocking plates provided vertically at both sides of the convey belt, and a sorting unit formed at the side of the belt unit and having a through hole through which the defective products falling from the impellers pass.