The invention discloses a validation verification method of a second edition certification of an internet key exchange protocol. The present validation verification method of an accessing server certification is not only with low efficiency, but also lacks of safety guarantee. For solving the problems, the validation verification method of the second edition certification of the internet key exchange protocol of the invention, which comprises the following steps: (1) the validity of the accessing server certification is verified by a terminal through the protocol server in an online certification status. If the accessing server certification is effective, a next step is carried out; if the accessing server certification is not effective, the steps are ended; (2) the validity of the terminal identification is approved by the accessing server. If the terminal identification is legal, communication is established by the both side; if the terminal identification is illegal, the steps are ended. The invention is applicable to a safety verification field of the second edition in the internet key exchange protocol.