Abstract. The vector-borne disease remains a health problem in Pandeglang District. Entomological data isimportant in the strategy of controlling the vector-borne disease. This study aimed to determine thedistribution of mosquito larvae based on specific habitat and ecosystem typea. This research is a secondarydata analysis of Rikhus Vektora 2016 in Pandeglang, Banten Province. This type of observational researchwith cross-sectional study design. The purposive sampling technique is used based on geographical andecosystem stratification. We found 12 types of environments of the six types of ecosystems (HDP, HJP, NHDP,NHJP, PDP, and PJP) that had larvae: forest (secondary, homogeneous, and coastal); lagoon; brackish waterswamp; bamboo clumps; rice fields; plantations; and residential areas. The most ecosystem types werelarvae in HJP (160 larvae) and the least larvae in NHDP (9 larvae). Species of larvae are 16 types: rice fields(Cx. vishui, Cx. tritaeniorhynchus, An. barbirostris); small hole in the ground (Anopheles sp., Culex sp.);coconut shell (Ae. albopictus, Ar. malayi, Ar. kuchingensis, Malaya sp, Culex sp.); armpit taro leaves andbanana leaves (Ae. albopictus, Malaya genurostris); freshwater swamp (Cx. vishnui, Cx. gelidus) andbrackish water (Anopheles sp.); riverside (Anopheles sp., Cx. quinquefasciatus); ditch (Culex sp.); pool (Cx.quinquefasciatus); lagoon (Anopheles sp., Culex sp.); bamboo stumps (Ae. albopictus); Limnocharis flavagarden (Culex sp.); and used bottles (Ae. albopictus). The characteristics of larvae habitat: temperature (25-33oC); pH 8-9 (67.3%); light intensity (115-32,000 lux); vegetation (12.7%); algae (3.6%); water istemporary (61.6%), inundated (78.2%) and clear (50,9%).Keywords: Habitat, Ecosystem, Larvae Vector, Pandeglang