Abstract: A connector protection device for a vehicle is configured to protect an electrical connector to prevent the connector from being chipped or damaged. The device protects the electrical connector by covering the same with a grommet. When the electrical connector is covered with the grommet by stretching a cutout in the grommet to the to match the size and width of the electrical connector, a supporting rib formed on the lower surface of an upper plate of the grommet is pressed upon being brought into contact with a grommet-side connector and, at the same time, the cutout is automatically closed.