MI Members ascribe to the EA Statement of Faith and abide by the MI Regulations and Standards Statement. 

Missions Interlink was established in 1986 at a national forum of evangelical missions in Canberra. It was considered expedient, conformable to the will of God, expressive of discipleship to the Lord Jesus Christ, and a step towards facilitating fulfilment of His great Commission, to constitute an Australian Commission of evangelical missions.

However, state missions commissions had existed in most states for many years, and until 2005 continued to maintain their own identities and separate memberships, and were regarded as member agencies of the national body in their own right.

The national office of Missions Interlink is responsible for all membership enquiries, national events, networks and ministries, and is a central point for information and resources for its members.

The state networks of MI are also very active, providing members within each state with regular opportunities to network, and pray for, and encourage each other . They are also engaged in working together to promote and mobilise for mission through collaborative activities.