By using electroantennography (EAG), olfactometer, and other technologies, the ovipositional attraction of Canna edulis Ker and several maizes to Ostrinia furnacalis (Guenée) at the natural and indoor conditions were studied. The results revealed that: (1) At field conditions, the numbers of eggs of O. furnacalis oviposited on C. edulis were significantly higher than that on maizes. (2) At the indoor conditions, the numbers of eggs on the glass board coated with C. edulis extracts were significantly more than maizes at the two concentration conditions(0.1 g?ml-1 and 10 g?ml-1 ). The results of the EAG showed that O. furnacalis had responses to extracts of C. edulis and 4 maizes, moreover all these responses had no significant difference. Only at the concentration of 0.1 g?ml-1, the EAG relative potential of the mated females to C. edulis showed significantly higher, compared with the extracts of maizes. The behavior response bioassay indicated that C. edulis extractant had the strongest attractiveness to all groups of O. furnacalis adults, and the mean trappability of C. edulis extracts to O. furnacalis exceeded significantly that of maizes. Relativity analysis showed that the results of field experiment and behavior reaction had very significant regression relationship. Altogether, all data suggested that C. edulis had significantly ovipositional attraction to O. furnacalis, and these attractiveness decreased with the increase of the concentration of leave extractant between 0.1 g?ml-1 and 10 g?ml-1.