[Objectives]  To investigate the influence of attractants on the behavior and electroantennograms of Aedes albopictus and thereby reveal the behavioral mechanisms underlying blood-feeding behavior in this species.        [Methods]  Behavioral observation and electroantennography (EAG) were used to test the effects of ammonia, L-lactic acid and 1-octene-3-alcohol on the behavior and physiology of A. albopictus. [Results]  The number of insects attracted, and EAG intensity induced, by the three attractants increased with concentration. At the same concentrations, ammonia was the most attractive compound, followed by 1-octene-3-alcohol and L-lactic acid. At concentrations above 1 mg/L, EAG intensity gradually increased with concentration. At concentrations of up to 1 000 mg/L, ammonia elicited the strongest reaction. [Conclusion]  Combining behavioral observation with EAG is a better way of determining the relative attractiveness of different substances to mosquitoes.