Abstract: As the increasing demand of particle collision energy in high energy physical research, the size of the particle accelerator is increasing, which puts forward a challenge to the design, measuring and maintenance of engineering control network. For this purpose, on the basis of summarizing and sorting out the research status at home and abroad, this paper refines the key technologies of structure and accuracy requirement, the selection of geometric reference framework, measuring instruments and markers, net form of control network and observation scheme, and the reduction and adjustment of observed value for giant particle accelerator control network. At last, some technical prospects and research ideas of the high precision three-dimensional control network construction technology are put forward for giant accelerator engineering.

Key words: particle accelerator, circular control network, reference ellipsoid, laser tracker, control network optimization design, three dimensional adjustment