The invention discloses a large-span bidirectional arch truss cable membrane material field closed structure system, belongs to the field of large-span space structures, and is particularly suitable for material field closed buildings and the like. The novel bidirectional arch truss cable membrane material field closed structure is mainly composed of an arch gable wall, a middle three-core circular arch truss and an outer cable membrane enclosing structure which are connected with concave secondary trusses. According to the structure, the use characteristics of a material field closed buildingare combined, and a tensioned membrane structure is utilized to act as a building enclosure, so that the consumption of steel is greatly reduced, the engineering cost is effectively reduced, the economical efficiency of the structure is improved, the construction cost pressure faced by large-span material field closed building construction is relieved, and the application prospect is wide. The large-span bidirectional arch truss cable membrane structure system has the advantages of being novel in structural form, reasonable in structure stress, strong in collapse resistance, attractive in architectural image and the like, is convenient to manufacture and install, and has strong practical significance.