The invention discloses a production system for manufacturing a crossbeam or an auxiliary beam of a wind blade by adopting pull-extrusion molded plates. The production system comprises a stacking platform, bundling mechanisms and a lifting mechanism; a plurality of bundling mechanisms are arranged along the length direction of the stacking platform; the lifting mechanism comprises a crane, a lifting tool, a plurality of lifting appliances and telescopic rods; the telescopic rods are connected with the lifting tool and the lifting appliances, are rigid telescopic rods and correspond to the lifting appliances one by one in amount; and the plurality of lifting appliances are arranged in pairs along the length direction of the stacking platform. According to the production system disclosed by the invention, the stacking platform is used for assembling of the pull-extrusion molded plates; the assembled pull-extrusion molded plates are bundled to form a prefabricated beam; subsequently the prefabricated beam is conveyed to a specified position of a blade shell by using the lifting mechanism; by the rigid telescopic rods of the lifting mechanism, the prefabricated crossbeam or auxiliary beam of the wind blade and a fabricated plate layer are kept in an arc surface shape along the length direction and the width direction during a lifting process, are also free from deformation and need not to be adjusted again after being placed at the position of the shell; and the production system is low in cost and scientific and reasonable in design.