There is provided a vehicle curtain airbag device including: an inflator; a curtain airbag; a rear seat side impact chamber; a front chamber; and a protective cloth that is configured separately from the curtain airbag, is anchored to at least an upper edge side of the curtain airbag, is disposed ranging from a vehicle width direction inner surface of a front portion of the rear seat side impact chamber to a vehicle width direction inner surface of a rear portion of the front chamber, in the completely deployed state of the curtain airbag, and covers, from a vehicle width direction inner side, a recess portion that has different heights in a bag thickness direction and that is formed between the front portion of the rear seat side impact chamber and the rear portion of the front chamber.