This utility model relates to a process of producing mosquito larvicide in liquid formulation comprising the steps of: mixing 5 gram of Bacillus thuringiensis israelensis with 1 liter of alkaline water in a mixing vessel； putting 5 gram of fish powder in 5 a container； pouring the mixture of Bacillus thuringiensis israelensis and alkaline water in the container containing the fish powder； and stirring thoroughly until the mixture will be properly distributed.
