Automobile and sunshade curtain device thereof

The invention discloses an automobile and a sunshade curtain device thereof. The sunshade curtain device comprises a guide rail, a sunshade curtain assembly and an end cover. The guide rail is used for being arranged on the side of an automobile skylight and is provided with a full-closed position and a full-open position in the first direction of movement of the guide rail. The sunshade curtain assembly is provided with a curtain cloth reel and an execution part for driving the curtain cloth extending end to be opened and closed, and the execution part is matched with the guide rail so as to stretch out or retract along the guide rail; the end cover is fixedly arranged on the rear side of the automobile skylight in the second direction, the end cover is provided with a first containing part and a second containing part which are sequentially arranged in the first direction, and the second direction is roughly perpendicular to the first direction; the curtain cloth reel is located in the first containing part