The invention provides an online-to-offline health service alliance-channel promotion processing system and method. The method comprises: an alliance request sent by each merchant terminal is received; when a mobile terminal completes electronic payment at any merchant terminal in a digital alliance by an alliance two-dimensional code, the alliance two-dimensional code and a sum of the electronic payment are received from the merchant terminal completing the electronic payment; and health service product information provided by each merchant terminal in the alliance two-dimensional code is adjusted according to the number of the alliance two-dimensional codes received by each merchant terminal from the mobile terminal within a preset time period and the total money of electronic payment. With the system method, one digital alliance can be formed when a plurality of merchant terminals carry out online-to-offline health services; and consumption can be carried out at any merchant terminal by the alliance two-dimensional code. The merchant terminals in the digital alliance cooperate with each other for promotion; and resource configuration of the merchant terminals in the digital alliance is optimized.