Cold vapor atomic adsorption spectrometry method was used in measuring mercury content in human’s hair samples after comparing the mercury measurement methods. Aqua regia-hydrofluoric acid digestion was taken to pretreat hair samples, and then mercury volume can be attained by Hydra AA Automatic mercury analyzer. Mercury concentration in about 40 percent of the tested samples exceeded the U.S. EPA recommended level 1μg/g. The results were analyzed from different respects including living environments, age distribution and dietary habits, and so on. The experimental data can supply a possible proof of mercury pollution in the studied district, and build foundation for the following full-scale mercury pollution investigation.