A novel heterogeneous catalyst, viscose fiber- supported cobalt phthalocyanine (Co - TDTAPc - F), was prepared by immobilizing cobalt tetra(2.4 - dichloro- 1,3, 5 -triazine)aminophtbalocyanine (Co- TDTAPc) on viscose fibers covalcntly. The oxidative removal of chlorophenols such as 2 - chlorophenoi, 4 - chlorophenol, 2, 4 - dichlorophenol, and 2, 4, 6 - trichlorophenol was investigated in the catalytic oxidative system of Co - TDTAPc- F/H2O2. Furthermore, more than 98% of these chloropbenols were decomposed in 4 h. Phenol, oxalic acid, maleic acid, and succinic acid, etc., were detected by high performance liquid chromatography (HPLC) and gas chromatography-mass spectrophotometer (GC - MS), and these short-chain organic acids could be further oxidized easily. The results indicated that the catalytic oxidation in the Co- TDTAPc - F/H2O2 system leaded to a deeper oxidation. In addition, a degradation pathway for chlorophenols was proposed on the basis of detection of intermediate compounds.