On the basis of national UHV power grid planning and Zhejiang power grid planning, the power supply area, planning location and rationality of UHV AC/DC stations were analyzed, and an adjustment and optimization scheme for Zhejiang main grid by locating at Zhezhong and Ningdong was proposed, combined with the basic situation of power consumption forecast and power balance in Zhejiang Province. Finally, the technical and economic comparison and analysis were carried out on the different location schemes of Zhejiang UHV AC/DC hybrid systems.