The invention belongs to the technical field of intelligent homes, and particularly relates to a grinding device convenient for collecting waste residues for intelligent home production. In order to solve the problem that a grinding device for intelligent home production is inconvenient in clearing fragments, the invention discloses the following scheme: the grinding device comprises a protectivehousing which is of a box body structure, wherein the outer wall of one end of the protective housing is hinged with a glass door; the inner wall of the bottom of the protective housing is equipped with a fixed device through a bolt; the two sides of the outer wall of the top of the fixed device are equipped with electric pushing rods which are horizontally arranged through bolts; and the outer wall of one side of each electric pushing rod is equipped with a vertical fixed plate through a bolt. According to the grinding device disclosed by the invention, four fixed tubes are arranged on the outer wall of the periphery of a circular disc brush, and the fixed tubes are connected with a dust collecting motor through corrugated tubes; in a grinding process of the circular disc brush, the dustcollecting motor is started, and the fixed tubes suck the fragments or the waste residues at the periphery of the circular disc brush to collect the fragments or the waste residues conveniently, so that the fragments or the waste residues can be sucked away by the dust collecting motor and dust collecting holes after grinding is ended.