Workpiece defect detection method based on visual detection

The invention relates to a workpiece defect detection system based on visual inspection, which is characterized by comprising N detection modules, N is a natural number greater than or equal to 2, and the detection conditions of different detection modules are different; all the detection modules are in communication connection with the defect detection fusion module, detection images output by all the detection modules are transmitted to the defect detection fusion module, and the defect detection fusion module judges defects of the workpiece to be detected according to at least two groups of detection images with different detection conditions. Compared with the prior art, the system has the advantages that the detection modules with different detection conditions of the plurality of detection modules are used for performing visual detection on the to-be-detected workpiece, the defect detection fusion module fuses at least two groups of detection images with different detection conditions, the defects of th