The invention discloses a tool for repairing a sleeve with an expansion pipe. The tool is used for repairing wells with broken sleeves in oil fields. The tool comprises the expansion pipe, wherein the two ends of the expansion pipe expand to form an upper expansion cavity and a lower expansion cavity, the lower end of the expansion pipe is connected with a guiding head and is sealed, an expansion head is arranged in the lower expansion cavity of the expansion pipe and located above the guiding head, the expansion head and the lower expansion cavity are sealed through a sealing piece, the upper end of the expansion head is connected with a pull rod in a sealed mode, a seal ring is arranged on the outer circumference of the pull rod in a sleeved mode and located in the upper expansion cavity of the expansion pipe, an inner hole of the seal ring and the pull rod are sealed through a sealing piece, the seal ring and the upper expansion cavity are sealed through a sealing piece, threads are arranged on the outer circumference of the portion, above the seal ring, of the pull rod, a limit ring is installed above the seal ring through the threads and fixes the seal ring into the upper expansion cavity, and the expansion pipe, the pull rod, the expansion head and the seal ring are sealed through the sealing pieces and form a sealing cavity jointly. According to the tool for repairing the sleeve with the expansion pipe, due to the fact that the low-pressure sealing cavity is adopted, force of the expansion head for expanding the expansion pipe can be greatly increased.