License plate holding bracket and the holding structure thereof

A license plate (LP) holding bracket (2) attached to a tailgate (1) which is arranged at a rear end of a cargo bed of a vehicle to perform a reciprocal rotational movement and which sets up the cargo bed in a closed state when the tailgate is in a vertical state and sets up the bed in an opened state when the tailgate is in a horizontal state. The bracket (2) has a gate side fixing member (3) fixed to the tailgate, a plate holding member (4) for holding a license plate and a rotational movement mechanism (5) for connecting the plate holding member to the gate side fixing member to make the plate holding member freely perform a reciprocal rotational movement and for moving the plate holding member to make the license plate take a parallel state or an erecting state to the tailgate so as to be visible of the license plate even though the plate is in the horizontal state.