In the information society, That effectively acquire government information by the vulnerable group is the key to sovle the problem of information poor. To smooth out this negative impact, the right of access to government information held by the vulnerable group must be guaranteed. However, this must involve profits relationship of relating stakeholders and will lead to conflicts of various rights, there are conflicts between public rights and private rights and conflicts between public rights and public rights. Therefore, a corresponding balance mechanism need to establish. In order to balance conflicts betwwen public rights and private rights, the mechanism need to carry out the principle of overall interests publicity of the vulnerable group, the principle of government infomation disclosure presumption, and the principle of ensuring the information access right of the vulnerable group that could get relief. While in order to balance conflicts between public rights and public rights, fisrt, the mechanism must start from balancing fundamental interests that power subjects represented all along, and then make this kind of interests, rights and interrelations expressed and reflected through legal norm.