The experiments were conducted to study the effects of the two different dosage of five different soil conditioners on soil physical chemical properties and yield of garlic.The results showed that five conditioners could all reduce soil bulk density and improve soil porosity.The medical stone could significantly reduce the soil bulk density early,then the montmorillonite conditioner showed the best effect and achieved significant level.In the early garlic growth,the soil alkali hydro nitrogen content was significantly increased for use of high quantity oyster shell,montmorillonite and organic fertilizer,the montmorillonite reduced soil available P significantly and high quantity organic fertilizer increased soil available P obviously.The oyster shell was no impact on available K，while the other four conditioners could all improve the soil available K.Montmorillonite,calcium silicate mineral and organic fertilizer could significantly improve the content of soil organic matter in the early garlic growth,but only high quantity organic matter increased significantly later.The soil pH value was declined for use of medical stone,montmorillonite and organic fertilizer.However,the soil pH value increased by oyster shell and calcium silicon.The garlic leaf blight disease was reduced for application the five conditioners.Compared to the control,the yield could be improvded after application the 5 kinds of conditioners,but only the yields of CI,CII and EII were significantly increased.