The invention discloses a method for repairing sleeve damage, and belongs to the technical field of oil extraction. The method comprises the steps that a treated well section, with sleeve damage, of an oil and water well is determined; a dust plug is arranged between the treated well section and a production well section; a plugging string is placed into the treated well section; the top boundary of the treated well section is plugged through a swelling pipe which sticks to a sleeve in the oil and water well in a swelling mode; a chemical plugging agent is injected into an annular space between a non-coupling sleeve at the lower section of the plugging string and the sleeve, and the bottom boundary of the treated well section is plugged; and the dust plug is broached away, and an oil flowing channel in a shaft is recovered. According to the method, the top boundary of the treated well section is plugged through the swelling pipe which is located at the upper section of the plugging string and sticks to the sleeve in the swelling mode, the chemical plugging agent is used for plugging the annular space between the non-coupling sleeve at the lower section of the plugging string and the sleeve, the bottom boundary of the treated well section is plugged, and repairing of the treated well section is achieved. The problems that relevant art is long in construction period, tedious in construction process and high in construction cost are solved. The goals that damage of the oil and water well sleeve is repaired safely and rapidly and construction cost is decreased are achieved.