Potassium feldspar was used as the raw material to loaded calcium oxide and sodium silicate for more micro-meso-porous,then it was modified with hexadecyl trimethyl ammonium bromide.The synthesized modifier loaded potassium feldspar （CK） was used to adsorb the phenol in wastewater.The effects of the amount of CK,initial pH of solution,adsorption time,initial concentration of phenol and other factors on the phenol adsorption of CK was investigated.In addation,the kinetic and thermodynamic models were used to investigate the adsorption mechanism.Results showed that the removal rate of phenol in-creased with the CK amount.The better adsorption effect was obtained in the neutral solution.Adsorption began to reach equi-librium at 1 h;with the increase of the initial concentration of phenol（50~3 000 mg/L）,the adsorption capacity of CK increa-sed to 30.32 mg/g and tended to saturation,which was 9 times higher than that of the raw material.Quasi-second-order kinetic model and Freundlich isothermal adsorption model can better describe the process of CK adsorption of phenol,which showed that chemical adsorption was the main process.Langmuir and Freundlich isothermal adsorption models showed that potassium feldspar was favorable to adsorb phenol in wastewater after loading modification.