A holder for holding a portable device inside a vehicle including a body portion having a fixed pad supporting one side of the portable device when placed thereon; a moving portion having a moving pad that is linearly movable between first and second positions; an elastic plate that holds the movement of the moving pad at the second position; and a button that is pushed by the portable device when placing the portable device onto the body portion to release the moving pad from a fixed state to a movable state. The moving portion may include a spring that is compressed while the moving pad moves from the first position to the second position, and moves the moving pad back to the first position from the second position by an elastic force.