According to an embodiment of the present invention, provided is an apparatus for managing blood sugar for diabetic patients, which is configured to manage blood sugar content of a patient having a problem with blood sugar, by dividing a day into three time sections. The disclosed apparatus for managing blood sugar for diabetic patients comprises: an input control unit for controlling to receive first information including first blood sugar on an empty stomach, a first meal size, and first blood sugar after a meal on the basis of a time point of the meal, from the patient a quantity of motion calculation unit for sensing a first motion from a first meal time point to a second meal time point, and calculating a first quantity of motion from the first motion a blood sugar calculation unit for calculating a blood sugar reduction effect of the patient from the first meal time point to the second meal time point in consideration of the first blood sugar after a meal and the first quantity of motion, and calculating a current blood sugar value in consideration of the first blood sugar after a meal and the blood sugar reduction effect a first notification unit for determining whether the current blood sugar value satisfies a first condition, and as a result of the determination, if the first condition is satisfied, generating a notification for notifying risk of low blood sugar and providing the same and a second notification unit for determining whether the current blood sugar value satisfies the second condition, and as a result of the determination, if the second condition is satisfied, generating a notification for notifying risk of high blood sugar and providing the same.COPYRIGHT KIPO 2016본 실시예는 하루를 3개의 시간 구간으로 분할하여 혈당환자의 혈당량을 관리하는 당뇨환자를 위한 혈당 관리 장치에 있어서, 상기 혈당 환자로부터 식사 시점을 기준으로 제1 공복 혈당, 제1 식사량, 및 제1 식후 혈당을 포함하는 제1 정보를 입력 받도록 제어하는 입력 제어부 첫번째 식사 시점인 제1 식사 시점 이후부터 제2 식사 시점 까지의 제1 움직임을 감지하고, 상기 제1 움직임으로부터 제1 운동량을 산출하는 운동량 산출부 상기 제1 식후 혈당, 및 상기 제1 운동량을 고려하여, 상기 제1 식사 시점
