The invention is suitable for the technical field of automatic detection, and provides a bolt looseness detection method, terminal equipment and a storage medium, and the method comprises the steps: obtaining an image containing a bolt; extracting a to-be-detected target area image in the acquired image; performing affine transformation on the to-be-detected target area image according to the to-be-detected target area image and the first template image to generate a first target area image; performing binarization processing on the first target area image and the first template to generate asecond target area image and a second template image; and judging whether the bolt is loosened or not according to the second target area image and the second template image. According to the bolt looseness detection method, the terminal equipment and the storage medium provided by the embodiment of the invention, the second target area image is obtained by processing the acquired image, and thenthe bolt looseness is automatically detected by comparing the difference between the second target area image and the second template image.