Abstract: Since 1986,we have treated 302 cases with hepatic and abdominal hydatid cyst(361cysts)by the method of percutaneous puncture,drainage and curettage combined with sys-temic drug and local drug administration with 5 years,follow-up.The rate of success ofpercutaneous puncture,aspiration,drainage and curettage was 99%.Only one case presentedallergic reaction.At 6 months after the PPDC,97.2%(212/218 )of the cysts had stoppedgrowth.One year later,84.4%(130/154)of the cysts had disappeared.Five years,follow-up revealed that 77.8%(14/18)of the cysts had disappeared.All of the above-mentioned caseshave recovered except for two cases suffered from recurrence of primary cysts resulting froma drop of the cannulas.No serious complications or death had been found.