Abstract: In a mounting structure of a dust cover in a hydraulic shock absorber, a portion continuously provided in an end portion of a portion forming a tubular portion in a metal pipe material of the dust cover is diameter-reduced to an inner diameter side, and an annular diameter-reduced portion including wall portions at both sides is formed. A flange portion obtained by crimping and folding the wall portions at both sides of the diameter-reduced portion in an axial direction according to a press working is formed so as to be continuously provided in an inner diameter side of one end of the tubular portion, and the flange portion is clamped between a mounting bracket and a support member.