Termite preventing and killing device

Relates to the technical field of environmental protection, and discloses a termite preventing and killing device which comprises a penetrating rod, a pesticide discharging groove is formed in the penetrating rod in a penetrating mode, a threaded drill bit is fixedly connected to the bottom of the penetrating rod, an extrusion plate is fixedly connected to the top of the penetrating rod, and a pesticide outlet is formed in the outer side of the lower portion of the penetrating rod. The device is characterized in that the inserting rod comprises an upper half rod and a lower half rod rotationally connected with the upper half rod, the upper half rod and the lower half rod are locked through a plug pin device, and the plug pin device comprises an upper plug pin sleeve, a lower plug pin sleeve, a plug pin rod, a plug pin rod handle and a handle groove. The inserting rod is divided into the upper half rod and the lower half rod, the upper half rod and the lower half rod are locked through the plug pin device, and