A shield tunnel freezing-consolidation PVC freezing pipe is applied to a freezing-consolidation area, a shield tunneling machine penetrates the freezing-consolidation area along the axis, and the PVC freezing pipe comprises a pipe body. The pipe body is made from PVC, the bottom end of the pipe body is closed by a PVC pipe choke plug, and a flange assembly is arranged at the other end and provides a steel flange plate on the outer side and a PVC flange plate on the inner side. The steel flange plate and the PVC flange plate are connected, and a liquid inlet pipe penetrates the flange assembly and extends into the pipe body. A liquid outlet pipe is further arranged on the pipe body. Therefore, the shield tunnel freezing-consolidation PVC freezing pipe is simple in structure and convenient to operate and meets the engineering strength and deformation requirements in the shield tunnel brine freezing design. In addition, the freezing pipe is not required to be pulled out after freezing is finished and can be directly cut during shield tunneling, and the shield tunnel safety is improved.