To establish three-dimensional control networks of coal mine accurately,an approach to employ different instruments was proposed,which included GPS,magnetic gyro,leveling,tatal station,etc.A coal mine was taken as an example to prove the practicability of the approach,and the main steps and technical specifications for the implementation of the fourth-grade leveling and 7″ traverse underground networks were given simultaneously.The principal works include the networks establishment with E-grade GPS overground,and 7″ traverse and the fourth-grade leveling underground,and gyro-orientation,for providing a theoretical basis for networks establishment underground and giving a reference to other similar coal mine.