The utility model discloses a numerical control double-faced milling machine for the outer contours of hook tail frames. The milling machine comprises a machine tool base and a machine body as well as an electric control system, wherein a hook tail frame storage chamber is formed in the machine body; openings are formed in the top and the two sides of the storage chamber; a hook tail frame end extruding device is arranged at the head of the machine body; a groove which is open frontwards and is communicated with the hook tail frame storage chamber is formed in the tail of the machine body; a top pressing rod is arranged above the machine body; one end of the top pressing rod is hinged to an end pressing device; a downward pressing device is arranged at the other end of the top pressing rod; a main body of the downward pressing device is embedded into the groove; cutters and the transmission and power mechanisms of the cutters are arranged on the two sides of the hook tail frame storage chamber respectively. The milling machine provided by the utility model can achieve one-time clamping and positioning, can be used for processing the two sides of the outer contour of each of the frame plates of the hook tail frames with the two specifications at the same time, and is stable in quality, time-saving, labor-saving and high in production efficiency.