NOVELTY - An organic wastewater is processed by making tester of membrane yeast reactor (MYR), screening specific yeasts by yeast enriching, yeast separating and specific yeast screening, performing test on processing organic wastewater with high concentration via membrane yeast reactor, and performing wastewater removing effect analysis by processing organic wastewater with high concentration by MYR.    USE - Processing of organic wastewater.    ADVANTAGE - The method has simple and easy operation, fewer devices, low investment and stable organism degradation effect, and no secondary pollution.    DETAILED DESCRIPTION - An organic wastewater is processed by making tester of membrane yeast reactor (MYR) by setting regulating tank, yeast tank, water storing tank and assistor for tester, organically combining all parts via self-control system for test of processing organic wastewater with high concentration; screening specific yeasts where concentration of chemical oxygen demand (CODcr) of organic wastewater is high by yeast enriching and separating technologies and strongly screening to prepare specific yeasts which degrade wastewater, yeast enriching by putting sludge samples (1-3 g) around tested wastewater draining port to potato dextrose agar (PDA) culture medium (200-500 mL) for enrichment culture for 1-3 days, taking out to centrifuge for 10-15 minutes with rotation speed of 6000-8000 rpm to prepare activated sludge precipitates, inoculating precipitates (3-5 g) to culture medium containing tested wastewater (200-500 mL) for enrichment culture for 1-3 days, standing to remove supernatant fluid, adding culture medium containing wastewater to sludge precipitates for enrichment culture and enriching large numbers of specific yeasts for degrading organic matters in tested wastewater via repeated naturalization, yeast separating by putting enriched sludge (0.2-0.5 g) to normal saline (100-300 mL) as source on solid culture medium with wastewater as only carbon source and separating and screening out 10-15 yeasts able to degrade organic matters in tested wastewater, specific yeast screening by testing wastewater degradation capacity of yeast prepared by separating, screening out 2-4 yeasts with best effects on degrading organic matters in tested wastewater as strains for research on processing organic wastewater with high concentration; performing test on processing organic wastewater with high concentration via membrane yeast reactor by performing amplification culture on 1-4 specific yeast(s) prepared by separating and putting fermented bacteria liquid to yeast tank, putting wastewater with CODcr of 10000-40000 mg/L into yeast tank through regulating tank, aerating by blower by exclusive membrane of tail end of reactor, separating processed wastewater from yeasts and putting discharged water into water storing tank and staying wastewater for 24-72 hours in whole test; and performing wastewater removing effect analysis by processing organic wastewater with high concentration by MYR, evidently degrading organic matters, retaining CODcr of discharged water to 1000-5000 mg/L and CODcr removal rate of 80-92% and substituting traditional anaerobic treatment of MYR via degradation effect analysis of organic matters in wastewater. The assistor comprises suction pump, blower, microporous aerator, flow meter, liquid level indicator and pipeline valve.