The utility model discloses a 10KV joins in marriage net and uses adjustable isolator installation device. The device is including bottom plate (1) to and be located on bottom plate (1) and both sides board (2) bottom plate (1) axial vertical, through being connected with bottom plate (1) a parallel diaphragm (3) between both sides board (2), curb plate (2) upper portion is equipped with at least one round hole (4), be equipped with a plurality of elliptical apertures (5) on bottom plate (1). The utility model discloses the device can be according to electrical distance's the requirement regulation isolator and the distance of hanging wire point and pole body for the circuit safe operation, support equipment safety.