The invention provides a demolishing construction method for a pipeline with a thermal-insulating and abrasion-resistant lining. The demolishing construction method comprises the following steps thata hanging lug is mounted on the pipeline; paired stop blocks are mounted on the two sides of a to-be-cut section of the pipeline, and a jack is mounted between each pair of stop blocks; precutting isconducted on the pipeline along the circumference of the to-be-cut section; the jacks are started, so that the pipelines on the two sides of the cut section are initially separated; deep cutting is conducted along an initially separated clearance of the pipelines, so that the pipelines on the two sides of the cut section are completely separated; blocking plates are inserted in the cur clearance during deep cutting; the jacks are removed, and reinforcing ribbed plates are mounted on the stop blocks where the jacks are removed; the reinforcing ribbed plates and the blocking plates are welded, so that openings of the cut pipelines are closed through the blocking plates; and the cut pipelines are moved away through a crane. According to the demolishing construction method for the pipeline with the thermal-insulating and abrasion-resistant lining, the labor intensity is advantageously reduced, construction safety is improved, the construction period is shortened, and the construction costis reduced.