The embodiment of the invention provides a pipeline shutdown and restart experimental device, which comprises an experimental pipeline unit, a temperature control unit and a data acquisition unit. The temperature control unit is connected with the experimental pipeline unit; the data acquisition unit is respectively connected with the experimental pipeline unit and the temperature control unit; the experimental pipeline unit comprises a power source, a testing pipeline, an auxiliary pipeline and an oil tank; the oil tank, the power source and the testing pipeline form a first circulating pipeline system; the auxiliary pipeline is arranged in parallel with the testing pipeline to serve as a replacement pipeline of the testing pipeline; the auxiliary pipeline, the oil tank and the power source form a second circulating pipeline system; and valves are respectively arranged at two ends of the testing pipeline and the auxiliary pipeline. By matching the testing pipeline and the auxiliary pipeline, the shutdown and restart rules of a wax-bearing crude delivery pipeline can be researched in a lab.