The present invention is a disk drive with an electrostatic discharge structure including a casing having a hollow space inside, and a tray with a spindle motor, which can freely insert into or pull out from the casing. A chassis covers the bottom of the tray and contacts the spindle motor. A bezel in the front of the tray has a hole to accommodate an eject button. A metal sheet is attached to the back of the bezel, surrounds the eject button, and connects with the chassis. A wire connects the spindle motor for grounding. The tray is able to discharge electrostatic charges whenever inserting into or pulling out from the casing.