Outer wall decorating plate, outer wall decorating plate system and construction method of outer wall decorating plate system

The invention discloses an outer wall decorating plate, an outer wall decorating plate system and a construction method of the outer wall decorating plate system, and belongs to the field of decorating plates, the outer wall decorating plate comprises a panel and a cover body, the panel is provided with a counter bore for a first fastener to penetrate through, and the cover body is arranged in the counter bore and at least covers the part, located in the counter bore, of the first fastener. According to the outer wall decorating plate, the outer wall decorating plate system and the construction method of the outer wall decorating plate system, through the arrangement of the cover body, the first fastener can be protected or the counter bore can be sealed only through bonding of a small amount of glue. The glue consumption is small, the cost is low, the problem of glue overflow is avoided, and a facing layer is easier to arrange. 本发明公开了一种外墙装饰板、外墙装饰板系统及其施工方法，属于装饰板领域，外墙装饰板，包括面板和盖体，面板上具有用于第一紧固件穿过的沉孔，盖体设置于沉孔内，至少将第