Dual-purpose interchangeable silent ratchet screwdriver

The utility model relates to the technical field of light industrial tools, in particular to a dual-purpose interchangeable silent ratchet screwdriver which comprises a handle, a plastic cover body is arranged at one end of the outer wall of the handle, a ratchet wrench assembly is arranged at the end, away from the plastic cover body, of the handle, and the ratchet wrench assembly comprises a ratchet unit assembly and a connecting rod assembly. The ratchet wheel unit assembly comprises a fluted disc and a steering knob, one side of the outer wall of the fluted disc is arranged on the inner wall of the steering knob in a sleeved mode, and the end, away from the plastic cover body, of the handle is connected with one side of the outer wall of the steering knob in a sleeved mode. The connected extension rod does not lack the ratchet function in the using process, meanwhile, workers do not need to prepare screwdrivers of multiple models in advance, and therefore the workers can conduct installation and use more