Abstract: The high performance liquid chromatographic method was employed for determining the acetic acid （AC） in furfural waste water on a symmetry 5 μm C_１８ （4.6 mm×150　 mm） column with 0.002 0 mol /L H_２ＳＯ₄ as the mobile phase at a flow rate of 1.0　m Ｌ/min. The detection was made on a UV detector at 210 nm with external standard calibration． The liner operating range of the method is 0.040 0[KG-*4]～0.400 0　g/L(r=0.999　8) with a r elative standard division (RSD) of 0.536%（n=6）. The average standard addition recovery of the wastewater samples is 105.5%[KG-*4]～115.7%.

Key words: acetic acid, high performance liquid chromatography, furfural wastewater