Angiostrongylus cantonensis is a parasite which causes Angiostrongyliasis,which is the most common cause of eosinophilic meningitis.This parasite may become infected to human through ingestion of larvae by contaminated water, vegetables etc.The larva is then transported through the blood to the central nervous system, where they are the most common cause of eosinophilic meningitis. The enzyme-linked immunosorbent assay test was performed to detect serum IgG-specific antibodies to A. cantonensis, and serological characteristics of the populations were analyzed. A total of 300 Achatina fulica samples had an A. cantonensis infection rate of 10.67% (32/300) and an average infection intensity of 68.7 per snail, whereas 302 Pomacea canaliculata samples had an infection rate of 6.29% (19/302) .