A method for analyzing lead content in lead filter cake was developed. The sample was dissolved using ammonium hydrogen fluoride, hydrochloric acid, nitric acid, and sulfuric acid. Arsenic, and tin interferences were removed with hydrobromic acid, while lead was separated from other interfering elements via sulfate precipitation. The precipitate was dissolved in an acetate-acetic acid buffer solution. Thioglycolic acid was employed to mask bismuth. and xylenol orange served as the indicator. Lead in the solution was titrated with a standardized Na, EDTA solution. Residual lead in the filtrate was corrected using fire atomic absorption spectrometry, and the total lead content was obtained by summing both results. Experimental data show that under optimal conditions, the method achieves a relative standard deviation of 0.147 %-0.269 % and a recovery rate of 99.30 %-101.00 %, effectively meeting the require-ments for lead determination in lead filter cakes.