Aquatic products as a kind of popular food， especially at the coastal areas， are very common in the life of people. Because there are a variety of heavy metals contained in the aquatic products， if there are a large number of consumptions of that kind of food， it is easy to cause adverse effects on the human body with a lot of heavy mental gathering in vivo. Therefore， to assess the consequence which was taken by the food with heavy mental inside have burned the eyebrow. And this paper majored in evaluating the intake and risk probability of heavy metals which are mainly from aquatic products for the people who settle down the coastal area by using crystal ball software. The results showed that， in different age groups， the risk entropy of aquatic product intake with the same heavy metal gradually decreased with age； by the contrast， for the people who are in the same age stage， the risk of heavy metal intake was proportional to the percentile value. In addition， for the various of heavy mental and the different crowd of all ages， the effects which the former put on the latter will present some differences here. The final results indicated that there is the lower risk of consuming chromium in aquatic products for the people of all ages， and the value which obtained from the results is less than 1. But for the children， there is the higher risk for the intake of mercury， chromium， lead and arsenic which the value is more than 1. Moreover， a series of elaborate analysis for the results are required in the rear of this article. After that， we found that the results we obtained have been verified and are basically consistent with the model， which indicates that the model has certain credibility.