Through simulation leaching experiment indoor,to analyze N，P，K in leaching solution which came from three multifunction filled fertilizer cakes.Results showed,(1)Nutrient N,K accumulated leaching curve of three multifunction filled fertilizer cakes showed “S” type,nutrient P was continuous rising gently ;(2)Nutrient N,P,K leaching rate was significantly lower than the control processing,releasing peak of N,K was slower than the control,and P was probably consistent with the control;(3)Sustainedrelease effect of three multifunction filled fertilizer cakes' coating to nutrient N,P,K were leaf>cow dung>peat,cow dung=leaf>peat,leaf>cow dung>peat.