Abstract: The results showed that 180 thousands cave/hm2 of peanuts cultivation density was the best in interpianting peanuts with wheat. The suitable spraying consistency of MET (Multi-effect Trlazole ) was 100ug/g. The pods amounts of single plant, weight of 100 fruits, ratioes of full fruits and two shelled peanuts can be increased greatly, the growth of the main stem and the branch development can be restrained effectively and the yield of peanuts can be increased by spraying MET at the end of peanuts full flower. The best combination of cultivation density of peanuts and spraying consistency of MET is 180 thousands cave/hm2 ×100ug/g , the yield will be 5703.1 kg/hm2.