The invention discloses a full-automation diamond abrading and polishing machine which comprises a frame and a rotating disk, wherein the rotating disk comprises two kinds which are respectively a first rotating disk and a second rotating disk. The full-automatic diamond grinding and polishing machine also comprises a rotating disk rotating mechanism, wherein the two rotating disks are arranged in a synchronous and homodromous rotary matching way by the rotating disk rotating mechanism; a switching station, a gluing station, a blank feed station, an abrading station and at least one polishing station alternately distributed on the periphery of the rotating disk uniformly according to the rotating direction are arranged on the first rotating disk; the second rotating disk is arranged at the side of the first rotating disk, a switching station, an abrading station, at least one polishing station, a feed station and a gluing station having an equal interval with the adjacent station of the first rotating disk according to the rotating direction are arranged on the second rotating disk, and the switching stations on the two rotating disks are arranged in an opposite matching way after respectively finishing a circle of stations at the two rotating disks. The invention has the advantages of full-automation integration, two-end abrading and polishing function, high abrading and polishing quality and efficiency, and the like.