Malaria remains a threat in sub-Africa, particulary in côte dIvoire. In Côte dIvoire malaria is endemic. The strong climatic variations that exist between coastal and savannah area of Côte dIvoire. Malaria suggest that vector control measures take into account eco-epidemiological diversity before considering large scale action.This syudy evaluate bioecological parameters of vectors and malaria transmission in two districts of côte dIvoire.It was conducted in the coastal (Jacqueville) and savannah (Beoumi) area of côte dIvoire in the dry season. Humain landing catches conducted monthly to determine Anopheles vector species composition, aggressive density, aggressive cycle and biting location as well as entomological parameters of malaria transmission. Mosquitoes were captured for 12 hours, from 6:00 pm to 6:00 am plasmodium inside infected mosquitoes were tested by Enzyme-linked immuno-sorbent assay for P. falciparum circumsporozoite protein. A random sample of 100 females belonging to the An.gambiae complex together with all CSP positive anopheline, were futher classified by PCR at the species and molecular form.In Jacqueville 853 (99,65%) An.gambiae s.l and 3 (0.35%) An.pharoensis.In Beoumi 811 (96,32%) An. pharoensis.An.coluzzi represented the only species of the An.gambiae s.l complex in Jacqueville. In Beoumi, 58% of An.coluzzi was found and the rest was constituted of An.gambiae s.s. The human bitting rate in Jacqueville increased from 5.7 (b/p/n) in Novembre to 17.3 (b/p/n) in march. Unilike eoumi, where the rate decreased from 16.4 (b/p/n) in march. In november to 0.69 (b/p/n) in march. In Jacqueville, (EIR) varies from 0.21to 0.56 (ib/p/n). There were no infections in the An.gambiae s.l pare population tested in Beoumi. This study shows us bioecological parameters of the two ares. Keywords: Malaria, mosquitoes, Côte dIvoire ,coastal area, savannah aera, transmission