A ground rodent repeller includes a main rod, a cover, a battery base and a control circuit board. One end of the main rod has an opening and a first screw thread. The cover has a second screw thread and a first locking part. The second screw thread and the first screw thread engage with each other. One end of the battery base has a second locking part, which engages with the first locking part of the cover. By this configuration, the components are designed for simple assembly, have a low production cost, can be promptly installed, and have ideal sealing and water proof effects.
