Through eliminate pollution and control water quality，a study on optimal pretreatment of furfural wastewater was carried out. During the study，the pH of wastewater rise to 9.70~9.80, then made use of stream physical power chemical action basal principle in the middle of coagulation fallout and a contrast test was carried out under effect of shearing force in appropriate fluid and the conbimed mode of different inorganic coagulant and organic agents. As a result, a combination of them to handling furfural waterwaste can reduce the turbidity to 4.3 NTU from 233 NTU and add the appropriate amount settlement carrier earth, turbidities (396 NTU) may be lowered to 2.7 NTU under the conditional mode of reasonable inorganic coagulant.