A dry-hanging assembly for a point supported porcelain plate comprises a main hanging piece, an upper fastener and a lower fastener. The main hanging piece comprises a vertical mounting part and bearing parts, the two bearing parts are vertically and symmetrically distributed and fixed to the same side of the vertical mounting part, and the upper fastener and the lower fastener are clamped and fixed to the two bearing parts correspondingly. The upper fastener comprises an upper vertical fastener part, an upper horizontal fastener part, a first vertical extension part, a first horizontal extension part and a second vertical extension part. The lower fastener comprises a lower vertical fastener part, a lower horizontal fastener part, a third vertical extension part, a second horizontal extension part and a fourth vertical extension part. One porcelain plate is sequentially hampered and fixed by the lower fasteners, the bearing parts, the upper fasteners and the bearing parts of the different dry-hanging assemblies from top to bottom, so that the mounting structure of the porcelain plate is stable; and the dry-hanging assembly is simple in structure and convenient to construct in mounting, and improvement of the mounting efficiency is facilitated.