The invention discloses a system for re-access of a wireless video conference terminal, including: a protection module configured to record relevant information of a conference in the event of terminal disconnection, log in to the video conference network according to the relevant information of the conference upon recovery of the network signal, and send a terminal reentering module the information for reentering the conference, wherein the relevant information of the conference contains a username and a password; and the terminal reentering module configured to determine that the terminal passes authentication according to the username as well as the information for reentering the conference and admit the terminal into the conference. The invention further discloses a method for re-access of a wireless video conference terminal. Adoption of the system and the method improves the user experience and facilitates the promotion of the wireless video conference.