The present invention discloses an adhesive powder scraping mechanism of upper material machine and lower material machine of water drill grinding machine group. An adhesive powder box cylinder base is installed at the middle part of worktable. The worktable at both sides of adhesive powder box cylinder base is installed with an adhesive powder box slide way base and an adhesive powder box scraping plate slide way base symmetrically in turn. A left first guide sleeve pair and a right first guide sleeve are respectively installed on the adhesive powder box slide way base. Both ends of adhesivepowder box are installed on the left first guide sleeve pair and the right first guide sleeve pair. An adhesive power box cylinder is fixedly installed on the adhesive powder box side way base. The piston rod of adhesive powder box cylinder is fixedly connected with the adhesive powder box through adhesive powder box cylinder connector. The adhesive powder box scraping plate side way base is respectively installed with an adhesive powder box scraping lifting mechanism with same structure. The invention realizes the automatization of operating procedure, is advantageous for reducing the redundant manpower, increasing the adhering efficiency in water drill production, saving the special raw material of water drill and reducing the cost expenditure. The adhesive powder scraping mechanism of upper material machine and lower material machine of water drill grinding machine group is mainly used for the production of ornaments of water drill, heat-melting drill, etc.