The invention provides a wire clamp mounting tool, and relates to the technical field of wire clamp mounting. The wire clamp mounting tool comprises a supporting rod and a fixing assembly, wherein thefixing assembly comprises an insulating clamping frame, a through hole, tightening components and an unloading assembly; the unloading assembly comprises an upright column between the two tighteningcomponents, two oppositely arranged pushing structures, and a sliding locking structure arranged inside the upright column. Through arrangement of the fixing assembly with an insulating property, thewire clamp mounting tool provided by the invention can effectively mount two wire clamps at the same time; meanwhile, after mounting is completed, the wire clamps are conveniently unloaded from the fixing assembly, so that actions of unscrewing the tightening components by multiple times in the conventional mounting process are omitted, the wire clamp unloading efficiency is improved while the working safety is guaranteed, at least 30% of the operating time can be saved, the workload of working staff is reduced, and the working safety of the working staff is improved; therefore, the wire clampmounting tool has a good using effect and a wide popularization value.