Abstract: This paper introduces an embedded face recognition attendance system which is used in coal mine.Combining with the RFID technology,the system can actively percept person who is approaching;selecting Tianmin tracking king camera,the system can automatically search for the face and take pictures,which greatly improves the reaction speed.Simple and high efficient PCA face recognition algorithm is used to enhance recognition accuracy.Meanwhile,server monitor interface is developed by VC++ language which can timely inquiry and record.Experiment proves that this system has great practical value.