The effects of intercropping of flue -cured tobacco and garlic, wheat, barley, sweet potato respectively on agronomic traits, yield and output value of Yunyan 87 were studied in Hefeng county, Enshi, Hubei province in 2014. The results showed that mainly took the method of random area group experiment in Hefeng, Enshi, Hubei Province. The results showed that com- pared to monoculture tobacco, all indexes of flue- cured tobacco under intercropping were obviously better, and chemical components in leaves of intercropping treatments was rational ,especially in treatment of intercropping with garl...