The invention discloses a rapid working clamp of a pre-hanging type power distribution line de-icing engaged line, comprising a short-circuit cable, wherein the two ends of the short-circuit cable are respectively connected with lead wire hanging mechanisms; each lead wire hanging mechanism comprises a first clamping block, a second clamping block and a pull rod; the upper end of each first clamping block is movably connected with the upper end of each second clamping block; relative clamping faces of the lower end of each first clamping block and the lower end of each second clamping block are respectively provided with bayonets for hanging an overhead line; a conductive block for connecting the overhead line with the short-circuit cable is arranged at the position of the corresponding bayonet on each first clamping block or each second clamping block; the conductive block is connected with the short-circuit cable; one end of each pull rod is connected with the middle part of each second clamping block; the other end of each pull rod penetrates through the middle part of each first clamping block; and the other end of each pull rod is provided with a first locking nut. According to the rapid working clamp of the pre-hanging type power distribution line de-icing engaged line disclosed by the invention, the lead wire hanging mechanisms are respectively and additionally arranged at the two ends of the short-circuit cable to realize rapid wiring of the short-circuit cable; and the structure is simple and the utilization is convenient. The rapid working clamp is applicable to de-icing work of a power distribution line.