The invention discloses a double-mechanical-arm coordinated control system in the technical field of machinery. The system comprises a mounting base; rollers are respectively connected to two ends of the bottom of the mounting base; bearing bases are respectively connected to two ends of the top of the mounting base; the tops of the bearing bases are connected with stand columns; the tops of the stand columns are connected with adapters through pin shafts; the other ends of the adapters are connected with first swing arms; the bottoms of the first swing arms are connected with first electric extension rods; the bottoms of the first electric extension rods are connected with the side walls of the stand columns; the other ends of the first swing arms are connected with second swing arms through pin shafts; and the side walls of the second swing arms are connected with second electric extension rods. The double-mechanical-arm coordinated control system reduces the risk in direct manual electrified operation; and through multi-angle operation of mechanical arms, an operating mode of adjusting both heights and angles, and cooperation of two sets of mechanical arms, the work is convenient to smoothly finish.