【Abstract】 Objective To evaluate the surveillance effect of Mosq?ovitrap to Aedes in the littoral areas with the high mosquito density. Methods Three or four Mosq?ovitraps were set in each household selected randomly from every 5 families. At the same time, the positive rate of the containers was investigated inside and outside of the household. Results A total of 1027 Mosq?ovitraps were set, and 43 Mosq?ovitraps were positive among 939 Mosq?ovitraps recovered effectively. Mosquito and oviposition positive index(MOI) was 4.6. There were 217 positive standing wasters among 324 households investigated, and the Breteau Index was 67.0, which was much higher than MOI. There was no significant correlation between them （r＝0.449，P＞0.05）. Conclusion The environmental hygiene condition has an important effect on the monitoring results of Mosq?ovitrap. It still needs to further study that how to raise the catching ability of Mosq?ovitrap to mosquitoes and apply it to the mosquitoes surveillance in the areas with high mosquito density.