A pot experiment was conducted to study the effects of controlled release fertilizers applied in different position on yield and quality of strawberry,N,P,K use efficiency and nitrogen balance.The results showed that the controlled-release fertilizers improved the changes of available N,P,K contents in soil,promoted the growth of strawberry and increased sugar/acid ratio and the Vc content of the fruit.Dry weight of plant,yield of fruit,N,P,K use efficiency were in the order of controlled release compound fertilizer(CRCF)>controlled release nitrogen fertilizer(CRNF) >common fertilizer(CF).Nitrogen residual ratio was in the order of CRNF >CRCF>CF and N loss ratio was in the order of CF >CRCF>CRNF.There were no marked differences on sugar/acid ratio,the Vc content and N residual ratio with different methods of fertilizer application.Dry weight of plant,yield of fruit,N,K use efficiency were in the order of underneath application>side application and mix application>surface application.The P use efficiency with underneath application was significantly higher than other three treatments,and there was no significant difference among other three treatments.Nitrogen losses ratio was in the order of surface application>side application and mix application>underneath application.