The comprehensive wastewater treatment experimental platform is characterized by that in addition to meeting the experimental requirements for industrial wastewater treatment, part of the wastewater in the experimental building can be collected and treated. The treatment capacity is 20L / h. The whole system can be divided into three stages: the first stage includes rotary extraction tower, internal electrolytic fluffy bed and coagulation sedimentation unit; the second stage includes anaerobic tank, inclined plate sedimentation, A2O, radial flow sedimentation tank, SBR, anaerobic biological filter, biological aerated filter, etc.; the third stage includes pH regulating tank, coagulation sedimentation tank, advanced oxidation tank, biological aerated filter, etc; It is suitable for experimental research and small-scale treatment of domestic sewage, phenol and high ammonia nitrogen wastewater. Typical applications include domestic sewage, coking wastewater, printing and dyeing wastewater, leather production wastewater, starch sugar production wastewater, etc.