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.