The utility model discloses an automatic LED (Light-emitting Diode) detection sorting device. A system comprises a first conveyor, a detection device, a second conveyor, a sorting device, a display device and a control device, wherein the first conveyor is used for feeding and conveying LED belts and dotting disqualified LED belts, the detection device is used for detecting the surface appearance, size, color and defects of LED supports in the LED belts, the second conveyor is used for sending out the detected LED belts, the sorting device is used for sorting out the disqualified LED belts, the displaying device is used for displaying detection data, and the control device is used for comparing the detection with standard data and counting so as to determine whether the LED support is qualified or not, controlling the feeding, detection, dotting, conveying and sorting process of the devices. In use, the automatic LED detection sorting device can realize automatic sorting of products through a plurality of steps including standard setting, control device starting, sampling, comparison and output in sequence, thereby being high in automation degree, and effectively reducing labor force.