The utility model provides a GIS switch mechanical position monitoring facilities, its includes directional device and measuring device, the directional device of includes pointer and magnet, the first end of pointer is connected to the three -phase transmission shaft, measuring device includes dial plate and measurement magnet location's measurement element, and measurement element installs to the dial plate, and measurement element includes the first survey group of measurement isolator joint, and first survey group is including measure piece and third measurement piece at a distance from first measurement piece, the second of setting each other, and the position of magnet corresponds with measurement element's position. A GIS switch mechanical position monitoring system which includes above -mentioned GIS switch mechanical position monitoring facilities, be connected to measurement element's hall detection module, be connected to hall detection module's a central processing unit, acentral processing unit that is connected to isolation output module, be connected to the monitoring system 1 who keeps apart output module and provide the monitoring system 2 of power. Its compact structure, measurement accuracy is higher.