Abstract: A mosquito destroyer including a container, an isolating mesh and a mesh tray, in which the container contains a predetermined amount of water. The isolating mesh is tightly connected with an open end of the container and a frame body is associated with the isolating mesh at the center thereof. The mesh tray is placed in the frame body and floats on the water surface. The female mosquito is induced to lay eggs on the mesh tray. After the eggs become larvas, the larvas will swim into the isolating mesh to grow up. After the larvas become mosquitoes, the mosquitoes are isolated by the isolating mesh and cannot fly out to sting humans and will die in the container.