The invention discloses a pharmacy selection method, a server and a system, which relate to the analysis and processing of medical information. The method comprises the following steps: the server receives the identity information of a pharmacy requesting party carried by a pharmacy requesting terminal, and the pharmacy requesting party is located in a geographical position; The server obtains prescriptions of a plurality of patients, and determines a target prescription containing identification information of a pharmacy requester from the prescriptions. The server obtains the welfare drug list from the target prescription and the information of the welfare drug available in each pharmacy in the plurality of pharmacies, and determines at least one alternative pharmacy that provides all the welfare drugs listed in the welfare drug list from the plurality of pharmacies; Information on welfare drugs carries the geographical location of pharmacies; The server determines the target pharmacy from the alternative pharmacy according to the geographic location of the pharmacy requesting party and the geographic location of the pharmacy; The server sends the target information to the pharmacy requesting terminal. Target information includes the geographic location of the target pharmacy. With this application, a pharmacy may be recommended to the drug requesting party.