The invention discloses a continuous flow high ammonia nitrogen organic wastewater treatment method and device. The device mainly comprises a homogenization tank, an anoxic denitrification tank, a sedimentation tank No.1, a micro-oxygen nitrosation membrane-mud coupling pool, a sedimentation tank No.2, an anaerobic ammonia nitrogen membrane-mud coupling pool, a multi-effect enhanced aerobic membrane-mud coupling bed and a sedimentation tank No.3 connected in series. The sludge in the sedimentation tank No.1 is returned into a water feeding front end of the anoxic denitrification tank through apump, the sludge in the sedimentation tank No.2 is returned into a water feeding front end of the micro-oxygen nitrosation membrane-mud coupling pool through a pump, the sludge in the sedimentation tank No.3 is returned into a water feeding front end of the multi-effect enhanced aerobic membrane-mud coupling bed through a pump, and partially treated waste water is used as product water. The method and device have high ammonia nitrogen load impact resistance and a high processing load capacity in treatment, have strong adaptability to temperature fluctuations and toxic substances and have thecharacteristics of easy recovery after inhibition, low operating cost and low sludge yield.