Abstract:With an attention to the hazard of endocrine disruptors on gastropoda organisms, the pollution-ecological problem of mollusks is being concerned gradually. Based on the current progress in the research area, several typical gastropoda organisms were discussed as the candidate species of testing organisms in the toxicity testing of chemicals. In view of their ecological significance, the four candidate prosobranchia species (Potamopyrgus antipodarum, Valvata piscinalis, Pomacea lineate and Bellamya aeruginosa) and one pulmonata organism (Lymnaea stagnalis) were suggested to develop as the standard testing organisms. Compared with the four other organisms proposed by foreign scholars, Bellamya aeruginosa proposed by Chinese scholars is of indigenous significance. Thus, attentions should be paid to the species in the toxicity testing of chemicals. On the basis of above discussions, the aspects of research on gastropoda organisms as candidate species in the toxicity testing in the future were prospected.