The invention relates to a medical information processing method and device. The medical information processing method comprises the following steps of acquiring a treatment information inquiry request sent by a terminal, and acquiring a user identification and a target hospital identification according to the treatment information inquiry request; calling an interface of a hospital system corresponding to the target hospital identification, and acquiring treatment information corresponding to the user identification from the hospital system, wherein the treatment information comprises medicalcost information; when medical insurance card information corresponding to the user identification exists, calling the interface of the medical insurance system to make the medical insurance system determine medical insurance payment cost according to the medical cost information and the medical insurance card information; and acquiring the medical insurance payment cost returned by the medical insurance system, determining self-paying cost according to the medical cost information and the medical insurance payment cost, and returning the self-paying cost and the medical insurance payment cost to the terminal. According to the method and the device, the efficiency is improved.