Technologically, the main point of the present invention is that flucculant is added to the culture liquid through stirring for fast flocculation and settlement, and beneficiated taxol concentrate isobtained after filtering. Composite flucculant is superior to single flucculant in the flocculation, settlement and filtering preformance. HPLC test shows that the flocculation results in no obvious change in the content of taxol in the culture liquid. The present invention has the advantages of being simple, reliable, efficient, low in cost and no "three wastes" produced.