Abstract: In order to ensure the pass-through of the full-automatic welding machine and realize the full-automatic continuous welding operation, the continuous cold bending pipe was adopted to replace the hot bending pipe to achieve an equivalent turning result. The straight pipe and the cold bending pipe were welded above the trench, and the integral pipe lowering-in was carried out after the welding was completed. The pipeline will be subjected to high stress during pipe lowering-in process. Especially for the pipeline with horizontal continuous cold bending pipes, the stress state in the whole pipe lowering-in process is complicated, and there is no such construction precedent. The finite element analysis was used to analyze the basic law of the double-sided unidirectional lowering-in of the pipeline with horizontal continuous cold bending pipe. The causes, distribution and influencing factors of residual stress after pipe lowering-in of the horizontal continuous cold bending pipe were analyzed. The feasibility evaluation criteria for lowering-in of the horizontal continuous cold bending pipe was proposed and demonstrated. The research results show that the construction plan of the integral pipe lowering-in of the horizontal continuous cold bending pipe with 3 specifications (1 422 mm×21.4 mm, 1 422 mm×25.7 mm and 1 422 mm×30.8 mm) in China–Russia Eastern Gas Pipeline is feasible.