The invention discloses a high-precision medium-speed wire cutting device, and relates to the technical field of medium-speed wire cutting, the high-precision medium-speed wire cutting device comprises a mounting base, an adjusting mechanism and a workbench, the adjusting mechanism is mounted on one side of the mounting base, the workbench is fixed on one side of the adjusting mechanism, a transmission cavity is fixedly mounted on one side of the mounting base, and the transmission cavity is fixed on the other side of the mounting base. A wire releasing mechanism and a wire collecting mechanism are rotationally installed on one side of the transmission cavity, and a detection mechanism is fixed to one side of the transmission cavity. According to the scheme, the stabilizing assembly can deviate along with the deviation direction of the molybdenum wire, then the tension spring installed on one side of the stabilizing assembly is stretched along with the deviation direction of the stabilizing assembly, the bent pipe is in an L shape, and a water source is located at the bent diameter position in the bent pipe and slides from the sliding rod to drive the floating plate to slide; the molybdenum wire is stored and scoured on the surface of the second induction sheet fixed at the inner diameter pipeline of the bent pipe to generate induction, contact type induction is performed on the molybdenum wire, rapid reaction is performed on the reaction of the molybdenum wire, and the accuracy during detection is ensured.