The present invention relates to a substrate transfer apparatus comprising: a transfer arm supporting a substrate; a lifting unit lifting the transfer arm; a first rotary unit supporting the lifting unit and enabling the lifting unit to be rotated in a horizontal direction to enable the transfer arm to be rotated in the horizontal direction; a driving unit supporting the first rotary unit and transferring the substrate; a second rotary unit enabling the lifting unit to be rotated in parallel to an upper surface of the first rotary unit. According to the present invention, easiness of storage and transport in a narrow space is improved without cutting the lifting unit.
