The actual utilization particularity of the confined groundwater resources in the middle-east plain of Haihe river basin is expounded by analyzing the condition of the confined groundwater exploitation for near30years.The characteristic and mechanism of releasing water,including elastic-releasing water and compressive-releasing water and leakage-releasing water from the confined aquifers under national condition and extractive condition,is proclaimed from analyzing the mechanism of the confined groundwater recharge and discharge,and of the excited release water by groundwater withdrawal.Rational knowledge of releasing water mechanism form the confined aquifers is put forwarded in a broad sense.Finally the utilizable particularity of the confined groundwater storage resources is discussed on above basis.