The funds are an even split between concessional loan and grant which the ADB says will also help mitigate the economic impacts of the virus.
The Solomons' government says the funds will help tackle health and economic strains caused by the pandemic.
It will finance the training of frontline nurses and doctors to fight the virus, as well as the acquisition of personal protective equipment for medical staff.
Economic stimulus will go to the farming and fishing sectors, small businesses, and state owned enterprises including Soltuna and Solomon Airlines.