The present invention relates to a method for estimating the actual release rate of a drug infusion pump and a device for testing the driving state of a peristaltic drug infusion pump using the same, and more particularly, to an infusion line 10 into which a cam follower of a drug infusion device of an interlocked release structure is inserted. ) Is repeatedly pressed, the actual release rate and the actual release amount of the drug injection device can be estimated in real time. The method for estimating the actual release rate of the peristaltic drug infusion pump according to the present invention is when the set value of the peristaltic drug infusion pump for discharging fluid from the infusion bag is sequentially increased from 40 mL/h to 120 mL/h, the peristaltic type A first step of measuring a change pattern of a sensor measurement value that appears when the CAM FOLLOWER of the drug injection pump repeatedly presses the infusion line 10 with the sensor unit 200; A second step of transforming the analog value measured in the first step into a digital value using the signal transforming unit 300; A third step of acquiring a time required between times when a specific cam follower repeatedly presses the infusion line 10 from the sensor measurement waveform transformed into a digital signal in the second step; When the peristaltic drug infusion pump sequentially increases the set value for discharging the fluid from the infusion bag from 40 mL/h to 120 mL/h, the amount of fluid actually released for each infusion rate per unit time is measured in the infusion bag. A fourth step of obtaining an actual release rate of the released sap; It characterized in that it is estimated by the fifth step of deriving a correlation equation between the time required in the third step and the actual release rate in the fourth step.본 발명은 약물주입펌프의 실제 방출 속도 추정 방법 및 이를 이용한 연동형 약물주입펌프 구동상태 검사기기에 관한 것으로, 더욱 상세하게는 연동형 방출구조의 약물주입장치의 캠 팔로워가 삽입된 수액라인(10)을 반복적으로 누르는 시간 간격을 이용하여 해당 약물주입장치