The utility model relates to a foldable hanging ladder for a 10kV power distribution iron tower. The foldable hanging ladder comprises a fixed hanging ladder, wherein the lower part of the fixed hanging ladder is connected with at least one piece of foldable ladder, supporting bases are arranged on four corners of the tail section of the foldable ladder, and fixing buckles are arranged between adjacent ladder frames. The foldable ladder is connected with the fixed hanging ladder into a whole, so the foldable ladder does not need to be detached. To prevent irrelevant personnel from climbing, the foldable ladder is placed on the fixed hanging ladder at ordinary times after being folded, and is buckled by the fixing buckles. When the foldable ladder needs to be used, an operator releases the buckles by using pull rods, and the foldable ladder is laid down for use. A person can directly climb to the fixed hanging ladder by virtue of the foldable ladder, so that the trouble of carrying a temporary ladder to and fro is avoided, a special person for holding the ladder is not needed, and a person can complete the operation. The foldable hanging ladder is relatively safe, simple and convenient.