A wire protection structure includes a housing, a holder that is received in the housing through an opening of the housing, a cover that covers at least a part of the opening of the housing to define a wire-drawn port with the holder being received in the housing, and an electric wire that is drawn from the wire-drawn port. A flexible plate-shaped holder plate is provided to be extended from a surface of the holder toward the wire-drawn port. A deflection allowable space is formed between the holder plate and the housing to allow a deflection of the holder plate.