Objective To investigate the incidence of imported vector borne diseases including dengue and malaria in Wenzhou, Zhejiang province, China and to provide a scientific basis for the prevention and control of imported infectious diseases. Methods The epidemic situation of dengue and malaria from 2004 to 2012 was subjected to epidemiological analysis, and the surveillance data of dengue and malaria were collected and analyzed. Results A total of 11 cases of imported dengue were reported from 2004 to 2012 in Wenzhou, including 4 male cases and 7 female cases. Of all cases, 72.73% were imported from Bangladesh and Singapore, and 81.82% occurred from June to November. The Breteau indices from 2010 to 2012 were 14.65, 18.43, and 16.98, respectively, and the index was the highest in June. A total of 322 cases of malaria were reported from 2004 to 2012 in Wenzhou, accounting for 0.20% of 157 500 patients with three types of fever who underwent blood test. These cases included 242 cases of vivax malaria, 71 cases of falciparum malaria, and 9 cases of mixed infection. Among them, 315 cases were imported, 34.29% from other countries and 65.71% from other regions in China. Conclusion Imported dengue and malaria occurs in Wenzhou, and there are risk factors for local outbreak. Monitoring should be strengthened and specific control measures should be taken to prevent the outbreak of imported vector borne diseases like dengue and malaria.