Security access method among equipment and communication equipment

The invention provides a security access method among equipment and communication equipment. The security access method among the equipment comprises the following steps of: acquiring access authentication information through an out-of-band channel, wherein the access authentication information is used for performing access authentication between service requesting equipment and service providing equipment, and the service requesting equipment and the service providing equipment share the same management equipment and form the out-of-band channel together with the management equipment respectively; and authenticating the access authentication information and providing a service for the service requesting equipment through an in-band data channel by using the service providing equipment when an authentication result represents the successful authentication of the access authentication information, wherein the service providing equipment and the service requesting equipment form the in-band data channel through