Flexible water supply pipeline for assembly type built-in

The utility model discloses a flexible water supply pipeline for assembly type built-in, and belongs to the technical field of water supply pipelines. The flexible pipeline comprises a flexible pipeline main body, a metal layer which ensures that the pipeline main body is bent in a reciprocating manner and does not rebound, and a scratch-resistant outer protection layer, the pipeline main body, the metal layer and the outer protection layer are sequentially arranged from inside to outside to form an integral pipeline structure; the metal layer is a stainless steel corrugated pipe and tightly wraps the outer side of the pipeline body. The outer protection layer is a rubber layer and tightly wraps the outer side of the metal layer. According to the utility model, the structural characteristics of the metal corrugated pipe are utilized to ensure that the whole composite pipe can freely reciprocate and does not rebound, so that the problems that a conventional pure plastic pipe is easy to rebound when being bent,