Assembled building board room capable of being quickly built

The invention discloses an assembled building board room capable of being rapidly built. A top plate used as a roof is arranged on the upper portion of an emergency board body, storage covers are fixed to the front side and the rear side of the upper end of the top plate through bolts, and waterproof canvas used for being isolated from the outside is wound in the storage covers; a zipper capable of being opened is sewn in the middle of the waterproof canvas, a bottom plate capable of being taken out in a sliding mode is arranged on the lower portion of the inner side of a first side plate and the lower portion of the inner side of a second side plate, supporting columns are welded to the lower end of the bottom plate at equal intervals, and two sides of the bottom plate are connected with guide grooves in the lower portions of the inner sides of the first side plate and the second side plate in a sliding mode respectively. According to the assembled building board room capable of being rapidly built, when the