Automatic detection protection line

The invention provides an automatic detection protection line which comprises a bracket, a detection box and a computer, wherein a conveyer belt is arranged on the bracket; the detection box is arranged above the conveyer belt and is fixed to the bracket; an image system and a first sensor are arranged in the detection box; the image system is connected with the first sensor and the computer; a second sensor is also arranged on the bracket and is connected with the computer; an alarm apparatus is also arranged and is connected with the second sensor; the bracket is composed of two parallel cross rods and six bracket legs; the bracket legs are respectively connected with two ends and middle parts of the cross rods; and adjustable foot margins are arranged at the grounding ends of the bracket legs. The automatic detection production line can replace workers to automatically detect the product quality, the work efficiency is improved, the workers just need to wait for the alarming of the system, the technical requirements on the workers are reduced, and the human cost is greatly reduced.