Abstract: Combined with agronomic requirements of tobacco seedling transplanting, an electric well cellar tobacco transplanting machine suitable for hilly and mountainous areas was designed．Whole machine has ability of mechanized well cellar hole forming, seedling throwing and watering．After completing modular design and assembly of key parts such as digging device, seedling throwing device and watering device of transplanting machine, field experiment was carried out．Test results showed that, operation efficiency of well cellar tobacco transplanting machine was 0.402 hm²/d, qualified rate of well cellar was more than 90.8%, and qualified rate of transplanting operation was more than 87.7%, which met requirements of well cellar transplanting of tobacco in hilly and mountainous areas, and provided equipment support for popularization and application of well cellar transplanting technology of tobacco seedlings in hilly and mountainous areas．