The utility model provides a manufactured sand mountain flour recycle system, includes mountain flour storage storehouse, transport mechanism, screening plant, recovery unit and production powder storehouse, screening plant is including sieve case, first screen cloth, first discharge opening and collector, the sieve case is stored the storehouse through a screw machine with the mountain flour andis connected, first screen cloth set up in the inside of sieve case, first discharge opening has been seted up on the lateral wall of sieve case, first discharge opening and recovery unit intercommunication, the collector set up in the sieve case the bottom, through the 3rd screw machine with production powder storehouse is connected, recovery unit includes batcher and flour mill, the batcher setup in between flour mill and the first discharge opening, the flour mill is connected to the mountain flour through the 2nd screw machine and stores the storehouse.