the present invention relates to a hose for collecting rain water or draining water , and a telescopic hose is described . the pipe wall of the telescopic hose is formed by a plurality of wrinkling parts coiled in a stretching direction of the telescopic hose . the telescopic hose has the advantages as follows : the problem that the hose is difficult to be kept in a folded or extended state is solved ; the telescopic hose not only can be extended or contracted relatively conveniently , but also can keep the shape in either folded or extended state , so that the underground wiring design can be facilitated . meanwhile , the telescopic hose is not influenced by the aging of a material , and has a relatively good application value .