Abstract: Real time intelligent inspecting and grading line of fruits was designed, which consists of a feeding and rolling system, a machine vision inspecting system and grading system. The fruit feeding and rolling installation with bicone rollers allows fruit to be fed and rolled at the required speed; then the machine vision inspecting system can scan the whole surface of fruits and acquire quality information from the image. With the intelligent inspecting of the machine vision inspecting system, we can attain the quality and position information of each fruit. At last, the controller sends all the information to the grading system, which carries out the grading of fruits.