The utility model belongs to the technical field of building pipe, especially, relate to a prevent stifled mud transportation pipeline device, including dredging pipeline and on -line measuring device, the on -line measuring device includes dustcoat, test probe, signal processor and signal transmission ware, the dustcoat is fixed in dredge outside the pipeline, test probe passes it stretches intoto dredge the pipeline it is interior in order to be used for the detection to dredge the pipeline dredge the fluid in the pipeline, signal processor locates in the dustcoat and with test probe connects in order to incite somebody to action the signal that test probe surveyed turns into the signal of telecommunication, the signal transmission ware with signal processor connects and will electricity signal transmission to terminal. The utility model discloses a prevent stifled mud transportation pipeline device, whether cooperation setting through on -line measuring device and terminal can letthe staff know in real time and dredge the pipeline and appear blockking up, ensures dredging engineering's progress normal clear, avoids causing the influence to dredging engineering's efficiency andcost.