This aim is to investigate whether the aquatic processing products that consumed by school children were contaminated by heavy metals. So, we collected aquatic processing products which is often used for school lunch such as dried squid,sailfish floss, tempura ,milkfish balls etc .We collected fifty samples of aquatic products for analysis of lead, cadmium, methyl-mercury, and the analysis method is basing on the FDA announcement method “aquatic animal test methods heavy metals-Lead and cadmium test” and “the test method of methylmercury in food (III). The lead, cadmium, methylmercury of heavy metal content in aquatic products were 0.07, 0.17, and 0.08 mg / kg, respectively. The intake exposure calculation of PTWI, each heavy metal were 25, 7, 1.6(μg /kg body weight),then we used the school lunch food content and nutrition standards, and the above information to evaluate the risk . After the risk assessment, all types of aquatic products were in compliance with the safe range.