The utility model discloses a polar digital control drilling press which is provided with a machine seat (1), wherein a working bench (18) and an upright post (20) are arranged on the machine seat (1), the upright post (20) is connected with a cross beam (22) through a sleeve cylinder (21), and the cross beam (22) is connected with a main shaft box (24) through a slide block (23) on the cross beam (22). The lower end of a main shaft in the main shaft box (24) is provided with a drill head clamping tool (25). The utility model is characterized in that the working bench (18) is provided with a supporting bench (5) which is fixed to the machine seat (1) through a supporting rod (4), and a rotary bench surface (6) is positioned on the supporting bench (5); the bottom of the supporting bench (5) is fixedly connected with a stepping motor (8), and an output shaft of the stepping motor (8) is connected with the supporting bench (5), and is connected with the rotary bench surface (6). The polar positioning mode is used for processing revolving part holes, and the stepping motor drives the drill head clamping tool to transversely feed so as to complete the positioning of a polar diameter. The stepping motor drives the working bench to rotate so as to complete the positioning of a polar angle. The processing efficiency and processing precision of hole positions are improved. A PLC control circuit can be used for controlling the stepping motor, and a general type digital control system is omitted so that the cost of the control system is reduced.