ObjectiveTo classify and analyze medical audit chargeback of a hospital and to propose management strategies. MethodsWe classified the project audit chargeback of a grade-three class-A comprehensive hospital in Chengdu from June to December 2013, and analyzed the underlying causes of the chargeback. ResultsThe total chargeback of the hospital from June to December 2013 was more than 30 000 items and the general amount involved was about 3 million yuan. The project number of recurring charges, excessive charges, unreasonable charges, anchored fees, inconsistent charges with doctors' advices, non-indications, disproportionate fees and charges over restriction accounts occupied respectively 42.99%, 39.71%, 9.15%, 5.73%, 0.35%, 0.17%, 1.44% and 0.46%; and the amount of money involved for those projects occupied respectively 8.84%, 52.55%, 14.44%, 10.70%, 2.54%, 1.15%, 8.91% and 0.88%. ConclusionThe reasons for project audit chargeback are complicated. By strengthening information technology, management of price and building negotiation mechanism with Medical Insurance and Pricing Management Institutes, we can reduce the amount of chargeback, protect the right of patients and enhance the efficient use of the health insurance fund, so that the hospital, medical insurance and patients can all get benefits.