An apparatus for placing ultra-small electronic devices into pockets on a carrier tape for packing has at least one holding element, a movement mechanism, a conveying mechanism and a positioning mechanism. The positioning mechanism further includes first and second positioning devices coupled to the conveying mechanism, wherein the second positioning device is mounted on the first positioning device. In use, the conveying mechanism conveys the carrier tape to move each pocket to a receiving position and the movement mechanism moves each holding element to place the electronic device into a respective pocket at the receiving position. The positioning mechanism adjusts a relative position between the electronic device and the respective pocket by adjusting the carrier tape, the first and second positioning devices being for coarse and fine positioning of the conveying mechanism respectively.