PURPOSE: To prevent the falling-off of parts and the damage to a circuit board at the time of sending out a parts-loaded printed circuit board by providing a feed board between this circuit board and a printed circuit board on which parts are not yet loaded.

CONSTITUTION: A parts-loaded printed circuit board 9 is placed on a table 17 while the following printed circuit board 10 on which parts are not yet loaded is placed on a loader 16. In this condition, the loader 16 is lowered to the height of the table 17, a pusher 8 and fixing jig 4 are advanced, and the pusher 8 is brought into contact with the circuit board 10. At this time, a feed board 1 is suspended down to the front edge of the circuit board 10. Then, the pusher 8 and the feed board 1 are advanced and the circuit boards 9, 10 are brought into contact with each other with the feed board 1 being interposed in between, to position the circuit board 9 in the position of the stopper 12 of an unloader 18 while positioning the circuit board 10 on the table 17. And, the pusher 8 and the feed plate 1 are returned to their original places to carry out the conveyance of the following circuit board 11. By this structure, the falling-off of parts and the damage to the circuit board can be prevented.