Abstract: Provided is an x-ray detecting type of a component counter and a method for counting components using the same. The component counter includes: an image obtaining module to obtain an image of an object with an x-ray tube and a flat detector; an inputting frame located at the front of the image obtaining module and having a guiding surface; a transferring tray to move between the image obtaining module and the inputting frame along a moving guide installed at the guiding surface; and a foreign object sensor displaced at the inputting frame to detect a foreign object; wherein the detector has a horizontal section to corresponding to an investigating surface of the transferring tray.