Fixing device used for live-line replacement of 10kV outdoor isolation switch

The utility model relates to a fixing device used for live-line replacement of an 10kV outdoor isolation switch. The fixing device comprises a support, two clamping heads, four hoops and two lead clamps, wherein the clamping heads sleeve the support, is used for clamping a cross arm, and are symmetrically arranged in the middle portion of the support; the four hoops are symmetrically arranged on the support at the two sides of the clamping heads, and the lead clamps are respectively fixed at the two ends of the support. The support uses a main frame made of high-intensity insulating sheet material, mechanical and electrical requirements for live-line maintenance or replacement of the isolation switch can be met, fixed clamps are included, and the leads are prevented from swinging; the fixing device is practical, simple in structure, low in production cost, convenient to install and high in safety performance; and present live-line work of the power supply bureau can be increased, and the coverage of live-line work and the power supply reliability can be improved.