In order to meet the requirements of intelligent management of access control area such as rapid passing of people flow, rapid counting and rapid verification, an access control system that is quick in response, powerful in function, easy to expand and prevent illegal invasion is designed in this paper. Based on the advantages of embedded technology and RFID technology, the system’s hardware design and software design of access control system are given. The field applications indicate that the access control system can avoid the phenomenon of people following and meet the needs of the new modern intelligent access control system, and it has a wide application prospect.