Abstract: In order to effectively control amount of fertilizer and a timely supply of fertilizer during growing period of crops，a bag controlled release fertilizer packed with degradable materials had been invented in recent years.As a new type of value-added fertilizer，it can release nutrients slowly according to a demand of crops for nutrients，thus fertilizer utilization rate was significantly improved and environmental pollution was reduced.At present，there is no technology and equipment for continuous，uniform and orderly discharge of bagged controlled release fertilizer，in order to discuss how to achieve orderly discharge of bag controlled release fertilizer，vibration sorting transportation，centrifugal sorting transportation，belt sorting transportation，roller sorting transportation and machine hand sorting transportation were analyzed.Some main problems existing in a sequential transportation of bagged materials were pointed out，and the design of sequential discharging mechanism of bagged controlled-release fertilizer was prospected.