The invention discloses an anaerobic microorganism reactor for intensive culture. The anaerobic microorganism reactor for intensive culture comprises a ground, a filter residue device is embedded intothe ground in advance, the filter residue device comprises a sedimentation barrel, a ring part, a round filtering net board, square sliding blocks, branch steel wires, a main steel wire, a vertical board, a coiling reel, a first rotating rod, a second rotating rod, a round baffle, a board part, a bolt, a pull ring and a spring, wherein the ring part is installed on the inner wall of the sedimentation barrel in a sliding mode, and the round filtering net board is fixedly installed on the inner wall of the ring part. Through stirring blades, waste water and microorganisms in a leakage net can be driven to hit against the inner wall of the leakage net, so that the waste water and the microorganisms are fully mixed, and the speed of the anaerobic microorganisms for decomposing impurities in the waste water is effectively improved; the bolt is rotated clockwisely, so that the round filtering net board moves upwards, the bolt is inserted into a positioning groove, the position of the roundfiltering net board is stabilized, and the original waste water treatment content can be maintained by the sedimentation barrel.