At present, the disease prevention and treatment of commonly used herbal medicine, which found that there is contamination of heavy metals that are harmful to the body, such as iron (Fe) A metal that is an important nutrient that helps in the treatment and prevention of anemia caused by iron deficiency. But if you get into the high-volume or have been retained for long periods of time can cause the muscles to work irregular or induced infection of the upper respiratory tract. Moreover, mercury (Hg) When the body is going to compromise the central nervous system. To lose control on the movement of limbs and nervous system also provide sensory loss may reach these deaths. Therefore it is necessary that there must be a measure of contamination of heavy metals in herbal drugs to consumer safety. This research used a Flame Atomization technique and a Hydride generation that easily. Easy and efficient. Can be used in industry to control the quality and standard of Thai medicinal herbs preparations and other related products.