Surface defect optical detection system and method for electronic component

The invention discloses a surface defect optical detection system of an electronic component, a detected object is an electrical component with at least two parallel pins, and the surface defect optical detection system comprises a horizontal linear conveying unit; a rotatable sorting roller is arranged at the conveying end of the linear conveying unit, and two parallel pins of an electrical element conveyed on the linear conveying unit horizontally face one side of the sorting roller; an inclined qualified product sliding way is arranged on the side, away from the linear conveying unit, of the sorting roller. A ccd visual camera is arranged above the end of the linear conveying unit; according to the invention, sorting of qualified products and unqualified products can be completed while optical detection of front and back surfaces of elements such as filters can be realized; and the turnover mechanism and the sorting mechanism for completing double-sided shooting are both completed by a sorting roller. 本发明公