The paper uses the full medical expense reimbursement insurance policy and surgical claim data of a property insurance company from 2017 to 2019 to investigated whether there was an asymmetric information problem between the insureds purchasing high coverage medical insurance and the claim of medical surgery, and whether the hospital had induced the insureds more likely to agree to be operated. The result of empirical analysis finds that the insured purchasing the high coverage medical insurance had a higher risk of using pioneer surgery service, we can infer that this was the evidence of moral hazard. In hospitals equipped with high-end medical equipment, the insureds were more inclined to using the pioneer surgery service which proved hospitals also induce demand of surgery.