Abstract:The simultaneous degradation effect of phenol and Cr(Ⅵ) in the micro-polluted water by static method was studied. And the influential elements on the removal effects and probed into the degradation mechanism was analyzed. The results indicated that the removal rates of Cr(Ⅵ), phenol, CODMn by synergetic effect of potassium ferrate oxidation and coagulation were 84.41%、28.33%、23.34%, respectively ,when the optimizing conditions were as follows: oxidation pH was 4,oxidation time was 20min, flocculation pH was 7, flocculation time was 30min and quality ratio of potassium ferrate to phenol was 10:1. It showed that potassium ferrate was a water treatment agent which could degrade Cr (VI) effectively in the micro-polluted water.