The invention relates to a two-shaft synchronous rotating cabinet assembling device which is characterized by comprising a rack (1), wherein a lifting table (6) is mounted in the middle of the rack (1); a left vertical column (8) and a right vertical column (81) are respectively mounted at the left and right ends of the rack (1); the bottoms of the left vertical column (8) and the right vertical column (81) are connected with the rack (1) respectively through a left sliding mechanism and a right sliding mechanism, so as to enable the left vertical column (8) or the right vertical column (81) to do linear movement along the length direction of the rack (1); a worm wheel and worm rotary support (9) is mounted at the top end of the left vertical column (8); and the output end of the worm wheel and worm rotary support (9) is fixedly connected with a left universal clamp (4) through a main shaft flange plate (7). According to the two-shaft synchronous rotating cabinet assembling device, a conventional switch equipment cabinet assembling process is changed into horizontal rotating cabinet assembling work, so that working at a high place is avoided, and a working mode in which a worker moves around a cabinet body is broken through.