PURPOSE: A micro USB connector plug is provided to prevent short circuit between a connection terminal and a metal shell by making an elastic grounding terminal contact with the inner surface of the metal shell by comprising the elastic grounding part on the upper side of a central part of the connection terminal. CONSTITUTION: A metal shell(130) surrounds a plug connection portion(115). A number of plug connection terminals are built-in along the width direction of a plug mold(110). One of the plug connection terminals includes an elastic grounding terminal(155) contacting with the inner surface of the metal shell on the upper side of a central part. A grounding hole(116) is formed on the upper plane of the rear of the plug connection portion in order for the elastic grounding terminal to contact with the inner surface of the metal shell elastically.
