The invention provides a folding hanger which comprises a first horizontal supporting rod, a second horizontal supporting rod, a hook and a second sliding sleeve, wherein the first horizontal supporting rod comprises a first section and a second section which are substantially equal in length, and the first section is in overturnable folding rotatable connection with the second section through a first connecting structure; the second horizontal supporting rod is parallel to the first horizontal supporting rod and fixedly connected with the first horizontal supporting rod, the second horizontal supporting rod comprises a third section and a fourth section which are substantially equal in length, and the third section is in overturnable folding rotatable connection with the fourth section through a second connecting structure; the hook comprises a first sliding sleeve slidably sleeving the first horizontal supporting rod and a hook body fixedly connected with the first sliding sleeve, the first sliding sleeve can rotate on the first horizontal supporting rod, so that the hook body can rotate to the position between the first horizontal supporting rod and the second horizontal supporting rod; the second sliding sleeve slidably sleeves the second horizontal supporting rod, and the length of the second sliding sleeve is smaller than that of the third section or the fourth section. The hanger can bear clothes with a large weight, and is convenient to fold and accommodate.