The invention discloses an APP-based wedding planning system. The system comprises a personal center module, a creative case model, a wedding matching module and a place appointment making module. The personal center module is connected with the creative case model, the wedding matching module and the place appointment making module. The creative case model is connected with the wedding matching module and the place appointment making module. The wedding matching module is connected with the place appointment making module. The system is advantageous in that the whole wedding planning processes are clearly displayed in an APP, so a client is capable of autonomously selecting clothes, a photographer, a host, a place and the like according to own habits and private customization is achieved; in addition, all steps are clearly priced, so the client is capable of making choices according to own consumption ability and a problem of repeated change in the traditional wedding planning is avoided; and wedding planning efficiency is improved.