Julie Bishop said US$6 million would go towards a pilot programme by researchers targetting mosquito-borne diseases in Fiji, Vanuatu and Kiribati.
The programme uses naturally occurring Wolbachia, a common insect bacterium, to stop mosquitoes from transmitting diseases like dengue, zika and chikungunya to humans.
The rest of the money would go towards initiatives to improve nutrition in the Pacific, such as increasing local production and public health communication.
