of the intelligent entrance guard the first controller obtains the unique identification code and the face image from the wireless signal the first controller compares a predefined identification code obtained from a first storage unit of the intelligent entrance guard with the unique identification code and further compares a predefined face image obtained from the first storage unit of the intelligent entrance guard with the face image the first controller determines whether the unique identification code is matched with the predefined identification code and the face image is matched with the predefined face image if yes the process goes to block 207 otherwise the process goes to block 208 at block 207 a light controlling unit of the intelligent entrance guard controls a light emitting unit of the intelligent entrance guard to emit light with one color to prompt the user that the verification is successful and an unlocking unit of the intelligent entrance guard unlocks the intelligent entrance guard at block 208 the light controlling unit controls the light emitting unit of the intelligent entrance guard to emit light with another color to prompt the user that the verification is unsuccessful and the unlocking unit cannot unlock the intelligent entrance guard in other embodiments the face capture module 231 can be designed to be other structures for example the face capture module 231 is a camera in other embodiments the unlocking system for the intelligent entrance guard 100 is not.