Cif card live detection is a system for customer information system of Agricultural Bank of China to detect whether the characters in the pictures or videos are real people through pictures or videos. According to relevant data, cif card in vivo detection is a real person in vivo detection system of Agricultural Bank of China. In vivo detection is a method to determine the real physiological characteristics of an object in some authentication scenarios. In the application of face recognition, live detection can verify whether the user is a real living person by blinking, opening his mouth, shaking his head and nodding his head, and using technologies such as face key point positioning and face tracking.