The invention relates to the field of production processes of flexible printed circuit (FPC) boards, and in particular relates to an automatic film alignment machine. The automatic film alignment machine comprises a rack, and a film feeding manipulator, a base material feeding manipulator, a finished product blanking manipulator and a base material conveying unit which are installed on the rack, wherein an XY adjusting platform and an alignment device are also installed on the rack, the film feeding manipulator longitudinally moves back and forth between the right upper part of the XY adjusting platform and the right upper part of the alignment device, the finished product blanking manipulator is transversely and movably installed on the rack, and when the finished product blanking manipulator transversely moves to the right end, the finished product blanking manipulator is positioned right above the XY adjusting platform. The automatic film alignment machine provided by the invention can produce various materials simultaneously, and automatically identify good products, operators can be trained easily to mount guard, the production efficiency is high, the conversion of production models and material number is fast, the equipment is compact in structure and small in occupied space, the efficient high-quality production of the FPC boards is realized, and the production cost of the exquisite mechanism is reduced.