Hexagon Rainmaker Drone, that remote controlled, sprays dry ice and AgI to catalyzes the clouds efficiently and effectively, instead of the original high-cost and high-risk methods to create artificial rainfall. The greatest feature of Hexagon Rainmaker Drone is modularization in both horizontal and vertical , which is uncommon now. During the catalysis process, six worker drones and one master drone combines in a horizontal group to work. Worker drones can detect the amount of catalyst in the carried case and fly return to the master drone to get supply in vertical. A big problem Hexagon Rainmaker Drone need to overcome is the flying altitude. And the problem of battery life. To overcome it, we use dual-battery and Israel Thor drone technology, which can help Hexagon Rainmaker Drone flies to the height of 8km. When wildfire happens, worker drones fly to observe distribution of forest fires and determine the yield of water they demand.