This machine tool is mainly used for drilling operations on H-shaped steel, channel steel and box-type beams, and is widely applied in industries such as steel structure buildings, bridges, and parking garages. The 7-axis CNC steel three-dimensional drilling machine uses seven servo motors to achieve drilling positioning in two vertical directions, one horizontal direction, and one length direction, as well as servo feed for three main axes. On the three drilling surfaces, each surface has one drilling main axis, and each drilling main axis on each surface is driven by a variable frequency motor. The drilling main axis is a servo-driven drilling main axis. When the hole diameters on each surface are the same, the holes on all three surfaces can be processed after the workpiece passes through the equipment once, resulting in high efficiency and high hole position accuracy. It is an indispensable equipment for ensuring quality in the steel structure manufacturing industry.