Battery blue film coating system and battery blue film coating detection method

The invention provides a battery blue film coating system and a battery blue film coating detection method, and belongs to the technical field of batteries. The system comprises a battery cell which comprises a battery cell body comprising a top surface and a bottom support surface, and a blue film; the mechanical grasping clamp comprises a first grasping clamp and a second grasping clamp, and the two grasping clamps are respectively used for clamping two opposite side surfaces of the battery cell body; the blue strip-shaped light source is arranged at a preset angle with the bottom support surface, and the light source surface faces the bottom support surface; the image acquisition unit is a black and white camera, is arranged to be opposite to the bottom support surface and is used for acquiring a detection image of the bottom support surface; and an upper computer, and a processor configured to extract a first region from the detection image according to the detection frame, extract a second region from a