In this paper, the rigid polyvinyl chloride material support and hanger structural pipeline is modeled by finite element analysis software, and the mechanical simulation is carried out by applying a static continuous load vertically downward from the center. Sensing fibers are arranged in a straight line along the axial direction on the top, bottom, and sides of the simulated pipe, the strain on the outer surface of the pipe is transferred to the sensing fiber by sticking the sensor, and the Brillouin optical time-domain analyzer is used to monitor the strain change of the pipeline under different loads. The results show that the axial direction of the pipeline to the bottom and top are tensile positive and compressive negative strains, respectively, and the strain of the side midline is unchanged. Moreover, the strain in the middle of the pipeline is the largest, whereas that towards the two ends of the pipeline gradually decreases, and the strain at 0.6 m tends to 0. Additionally, the strain sensitivity at the bottom of the middle section of the oil and gas pipeline is 3.3 and 5.5 times that at the top and support end, respectively.