The utility model relates to an automatic production line device for direct-current transmission converter valve assembling. The automatic production line device for direct-current transmission converter valve assembling comprises a rectangular frame body supported by multiple supporting insulators which are vertical to the ground; a transmission supporting plate (9) is installed on the upper plane of the rectangular frame body; a first automatic transmission line body (1) and a second automatic transmission line body (2) are installed on the transmission supporting plate in parallel; a converter valve module framework is erected on the first automatic transmission line body (1) and the second automatic transmission line body (2) through positioning devices (7); a first jacking device (3), a second jacking device (4) and a control system (8) are installed on the transmission supporting plate (9). According to the technical scheme of the automatic production line device for direct-current transmission converter valve assembling, the assembly technological process of the module framework is simplified, the assembly difficulty is effectively reduced, the assembly precision and efficiency are improved, and meanwhile the advantages of being high in flexibility and strong in adaptability and the like are achieved.