To provide a thermally insulated hose which prevents an inner layer of a flexible inner tube from protruding inside the hose and suppresses the increase of flow resistance of a fluid even when being bent, and a method for producing the hose.

A method for producing a thermally insulated hose includes the steps of A forming a cylindrical inner layer from a soft resin; B winding a reinforcing member helically around the inner layer for uniting with each other to form the flexible inner tube comprising the inner layer and the reinforcing member, the reinforcing member comprising a hard resin and protruding from an outer periphery of the inner layer toward an outer surface side of the hose; C winding a thermal insulating elastic strip helically around an outer side of the flexible inner tube for forming a thermal insulating layer, with arranging a cross section of the strip substantially parallel to the axial direction of the hose, with opposing or facing adjacent lateral edges of the strip to each other, with forming a gap between an inner surface of the strip and an outer surface of the inner layer, and with compressing the strip in a thickness direction at a contact area in which the strip contacts with the reinforcing member; and (D) forming an outer layer on an outermost side of the thermal insulating layer for immobilizing or fixing the thermal insulating strip.