The invention discloses a spraying and air supplying device for malt sprouting. A placement board is a composition structure on a spraying and air supplying device body. According to the spraying andair supplying device for malt sprouting, through cooperative use of the spraying and air supplying device body, the placement board, a movable board, vertical boards, a press board, first springs, a clamping block, a shell, a through opening, a limiting hole, a movable rod, a connection board, a pull ring, a limiting block, a limiting board, a fixing sleeve, a sliding board, a stability mechanism,a clamping rod, an opening and a clamping groove, the problems that in a use process of an existing spraying and air supplying device for malt sprouting, a stability effect is poor, a malt seedling board is directly placed on a spraying and air supplying device body, the malt seedling board cannot be fixed, in a use process, the malt seedling board can be detached from the spraying and air supplying device body, thus resources are wasted, and subsequent use of a user is affected are solved, and the spraying and air supplying device for malt sprouting has the advantages that the spraying and air supplying device for malt sprouting has a good stability effect and a fixing function, and is worth of being popularized.